Ransom, E.L. and E.F. Burchard with H.S. Gale books & textbook
Contributions to Economic Geology (Short Papers and Preliminary Reports) 1918 Part I -- Metals and Nonmetals Except Fuels: Geological Survey Bulletin 690
Ransom, E.L. and E.F. Burchard with H.S. Gale Pocket with Color Map at Rear
U.S. Government /1919T Paperback
