Online Public Access Catalogue (OPAC)Library,Documentation and Information Science Division
“A research journal serves that narrow
borderland which separates the known from the unknown”
-P.C.Mahalanobis
Billings Geological Society. Guidebook, fifth annual field conference, September 9-11, 1954. Pryor Mountains - Northern Bighorn Basin, Montana. Editor, Paul W. Richard. - Billings ? Mont., 1954] 184 p. (p.166-184 advert.) illus.(part fold.) maps (3 fold., in pocket) 29cm. * Geology - Montana. * Richards, Paul W * Title