Yochelson, Ellis Leon   1928-2006 <br/><br/>
Late paleozoic gastropoda from northern Alaska / 
by Ellis L. Yochelson and J. Thomas Dutro. 
 -- Washington :   United States Government Printing Office,   1960 
 - P. 111-146, [4] h. de lam. -- 
 (Geological Survey Professional Paper  ;  334-D).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Alaska<br/>Gasterópodos fósiles
<br/><br/><label>Universal Decimal Class. No.: </label>564.3(798)