Peck, Raymond Elliot  1904-1984 <br/><br/>
North American Mesozoic Charophyta / 
by Raymond E. Peck. 
 -- Washington :   United States Government Printing Office,   1957 
 - 44 p., [7] h. de lam. -- 
 (Geological Survey Professional Paper  ;  294-A).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Estados Unidos<br/>Geología<br/>Mesozoico
<br/><br/><label>Universal Decimal Class. No.: </label>551.76(73)