Grabau, Amadeus W. <br/><br/>
The permian of Mongolia. 

 - New York :  The Am.Museum of Natural History,  1931. 
 - 665 p. :  il. ;  27,5 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Paleontología<br/>Permico
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Mongolia
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Libro
<br/><br/><label>Universal Decimal Class. No.: </label>56(113.6)