Geochemistry of niobium and tantalum,

by Parker, Raymond L. (Raymond Laurence)
Washington, U.S. Govt. Print. Off., 1968

Geology of the Curlew quadrangle, Ferry County, Washington /

by Parker, Raymond L. (Raymond Laurence)
Washington, [D.C.] : U.S. G.P.O., 1964

Mafic-ultramafic igneous rocks and associated carbonatites of the Gem Park Complex, Custer and Fremont Counties, Colorado,

by Parker, Raymond L. (Raymond Laurence)
Washington, U.S. Govt. Print. Off., 1970

Geochemistry of niobium and tantalum

by Parker, Raymond L. (Raymond Laurence)
Washington, U.S. Govt. Print. Off., 1968

Mafic-ultramafic igneous rocks and associated carbonatites of the Gem Park Complex, Custer and Fremont Counties, Colorado

by Parker, Raymond L. (Raymond Laurence)
Washington, U.S. Govt. Print. Off., 1970

Geology of the Curlew quadrangle, Ferry County, Washington /

by Parker, Raymond L. (Raymond Laurence)
Washington : U.S. Govt. Print. Off., 1964

Geochemistry of niobium and tantalum /

by Parker, Raymond L. (Raymond Laurence)
Washington : U.S. Govt. Print. Off, 1968

Niobium and tantalum in the United States : exclusive of Alaska and Hawaii /

by Parker, Raymond L. (Raymond Laurence)
Washington, D.C. : Dept. of the Interior, U.S. Geological Survey, 1963

Geology of the Curlew quadrangle, Ferry County, Washington /

by Parker, Raymond L. (Raymond Laurence)
Washington [D.C.] : U.S. G.P.O., 1964

Mafic-ultramafic igneous rocks and associated carbonatites of the Gem Park Complex, Custer and Fremont Counties, Colorado /

by Parker, Raymond L. (Raymond Laurence)
Washington : U.S. Govt. Print. Off., 1970

Data of geochemistry.

by Parker, Raymond L. (Raymond Laurence)
Washington : United States Department of the Interior, Geological Survey, 1967
6th ed. /

Geochemistry of niobium and tantalum /

by Parker, Raymond L. (Raymond Laurence)
Washington : U.S. Govt. Print. Off., 1968

Niobium and tantalum in the United States : exclusive of Alaska and Hawaii /

by Parker, Raymond L. (Raymond Laurence)
Washington, D.C. : Dept. of the Interior, U.S. Geological Survey, 1963

Geochemistry of niobium and tantalum /

by Parker, Raymond L. (Raymond Laurence), Fleischer, Michael, 1908-
Washington : U.S. Department of the Interior, Geological Survey, 1968

Mafic-ultramafic layered intrusion at Iron Mountain, Fremont County, Colorado : mafic and ultramafic rocks occur in a small layered funnel-shaped intrusive complex associated with...

by Shawe, Daniel R., 1925-, Parker, Raymond L. (Raymond Laurence)
[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1967

Geochemistry of niobium and tantalum,

by Parker, Raymond L. (Raymond Laurence), Fleischer, Michael, 1908-1998
Washington, U.S. Govt. Print. Off., 1968

Geology of the Curlew quadrangle, Ferry County, Washington /

by Parker, Raymond L. (Raymond Laurence), Calkins, James Alfred, 1923-
Washington, D.C. : United States Department of the Interior, Geological Survey, 1964

Mafic-ultramafic igneous rocks and associated carbonatites of the Gem Park Complex, Custer and Fremont Counties, Colorado /

by Parker, Raymond L. (Raymond Laurence), Sharp, William N. (William Neil), 1922-
Washington : United States Government Printing Office, 1970

Mineral resources of the Idaho primitive area and vicinity, Idaho : an evaluation of the mineral potential of the area /

by Cater, Fred W. (Fred William), 1912-, Pinckney, Darrell M., Hamilton, Warren Bell, 1925-2018, Parker, Raymond L. (Raymond Laurence), Weldin, Robert D., Close, Terry J., Zilka, Nicholas T., Leonard, B. F. (Benjamin Franklin), 1921-, Davis, W. E. (Willard E.), 1905-
Washington, D.C. : U.S. Govt. Print. Off., 1973

Mafic-ultramafic layered intrusion at Iron Mountain, Fremont County, Colorado : mafic and ultramafic rocks occur in a small layered funnel-shaped intrusive complex associated with...

by Shawe, Daniel R., 1925-
Washington : U.S. Govt. Print. Off., 1967