Bibliography of North American geology, 1965. 

 -- Washington :   United States Government Printing Office,   1969 
 - 1144 p. -- 
 (Geological Survey Bulletin  ; 1235).
<br/><br/><label>Subjects--Topical Terms: </label><br/>América del Norte<br/>Geología - Bibliografías
<br/><br/><label>Universal Decimal Class. No.: </label>55(7)(01)