Sando, William J. <br/><br/>
Carboniferous megafaunal and microfaunal zonation in the Northern cordillera of the United States / 
by William J. Sando, Bernard L. Mamet and J. Thomas Dutro. 
 -- Washington :   United States Government Printing Office,   1969 
 - 29 p. + map. -- 
 (Geological Survey Professional Paper  ;  613-E).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Braquiópodos fósiles<br/>Corales fósiles<br/>Estados Unidos
<br/><br/><label>Universal Decimal Class. No.: </label>563.6+564.8(73)