Pipiringos, George Nicholas  1918- <br/><br/>
Correlation and nomenclature of some Triassic and Jurassic rocks in South-Central Wyoming / 
by George N. Pipiringos. 
 -- Washington :   United States Government Printing Office,   1968 
 - 26 p. -- 
 (Geological Survey Professional Paper  ;  594-D).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Jurásico<br/>Rocas<br/>Triásico<br/>Wyoming
<br/><br/><label>Universal Decimal Class. No.: </label>552(787)"6151/6152"