Migration of birds /

by Lincoln, Frederick Charles, 1892-1960
Washington : Dept. of the Interior, Fish and Wildlife Service : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1979
Rev. ed.

Fishes of the Gulf of Maine /

by Bigelow, Henry Bryant, 1879-
Washington : U.S. G.P.O., 1953
1st revision.