Reconnaissance of Porcupine Valley, Alaska
Wraps. Washington: U.S, Government Printing Office, 1944. 219-243, iv p. + folding map in pocket inside rear cover. Geological Survey Bulletin 933-D. [3304]
Wraps. Washington: U.S, Government Printing Office, 1944. 219-243, iv p. + folding map in pocket inside rear cover. Geological Survey Bulletin 933-D. [3304]