Imlay, Ralph Willard   1908-1989 <br/><br/>
Upper Jurassic mollusks from eastern Oregon and Western Idaho / 
by Ralph W. Imlay. 
 -- Washington :   United States Government Printing Office,   1964 
 - 19 p., [4] h. de lam. -- 
 (Geological Survey Professional Paper  ;  483-D).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Idaho<br/>Jurásico superior<br/>Moluscos fósiles<br/>Oregon
<br/><br/><label>Universal Decimal Class. No.: </label>564(795/796)"6152"