Historic resource study : Cambria Iron Company , America's Industrial Heritage Project, Pennsylvania /

by Brown, Sharon A.
[Denver, CO : Denver Service Center ], National Park Service, U.S. Dept. of the Interior, 1989

Cambria Iron Company : America's Industrial Heritage Project, Pennsylvania /

by Brown, Sharon A.
[Washington, D.C.?] : U.S. Dept. of the Interior, National Park Service, 1989