Cobban, William Aubrey 1916-2015
Multinodose scaphitid Cephalopods from the lower part of the Pierre shale and equivalent rocks in the conterminous United States / by William A. Cobban and Glenn R. Scott. -- Washington : United States Government Printing Office, 1964 - 13 p., [4] h. de lam. -- (Geological Survey Professional Paper ; 483-E).
Amonites
564.53
Multinodose scaphitid Cephalopods from the lower part of the Pierre shale and equivalent rocks in the conterminous United States / by William A. Cobban and Glenn R. Scott. -- Washington : United States Government Printing Office, 1964 - 13 p., [4] h. de lam. -- (Geological Survey Professional Paper ; 483-E).
Amonites
564.53