TY  - BOOK
AU  - Cobban;William A.
AU  - Scott Glenn R.
TI  - Multinodose Seaphitid Cephalopods from the Lower Part of the Pierre Shale and equivalent Rocks in the Conterminous United States
PY  - 1964///
CY  - Washington : 
PB  - United States Government Printing Office, 
ER  -