Gordon, Mackenzie  1913- <br/><br/>
California carboniferous cephalopods / 
by Mackenzie Gordon. 
 -- Washington :   United States Government Printing Office,   1964 
 - 25 p., [4] h. de lam. -- 
 (Geological Survey Professional Paper  ;  483-A).
<br/><br/><label>Subjects--Topical Terms: </label><br/>California<br/>Cefalópodos fósiles
<br/><br/><label>Universal Decimal Class. No.: </label>564.5(794)