Cambrian geology and paleontology III; No. 4, Relations between the Cambrian and pre-Cambrian formations in the vicinity of Helena, Montana
Walcott, C.D., 1916, Cambrian geology and paleontology III; No. 4, Relations between the Cambrian and pre-Cambrian formations in the vicinity of Helena, Montana: Smithsonian Miscellaneous Collections, v. 64, p. 259-301.
Authors
Walcott, C.D.
Publication Date
1916
Citation
Smithsonian Miscellaneous Collections, v. 64, p. 259-301.
