Imlay, Ralph W.  1908-1989 <br/><br/>
Ammonites from the Buchia zones in northwestern California and southwestern Oregon / 
by Ralph W. Imlay and David L. Jones 
 - Washington :  United States Government Printing Office,  1970 
 - iv, 59, [32] p. :  ill., maps. ;  29 cm. 
 - Jurassic (Tithonian) and Cretaceous Buchia zones in northwestern California and southwestern Oregon Geological Survey professional paper ;  647-B .
<br/><br/>Bibliography: p. 53-55 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ammonoidea--California<br/>Ammonoidea--Oregon<br/>Paleontology--Jurassic<br/>Paleontology--Cretaceous<br/>Paleontology--California<br/>Paleontology--Oregon
<br/><br/><label>Dewey Class. No.: </label>550.8