Gill, Robin James  1922-1972 <br/><br/>
Stratigraphy and nomenclature of some upper cretaceous and lower Tertiary rocks in South-Central Wyoming / 
by J. R. Gill, E. A. Merewether and W. A. Cobban. 
 -- Washington :   United States Government Printing Office,   1970 
 - 53 p. -- 
 (Geological Survey Professional Paper  ; 667).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Estratigrafía<br/>Terciario<br/>Wyoming
<br/><br/><label>Universal Decimal Class. No.: </label>551.78(787)