Roberts, Laura N. Robinson. <br/><br/>
Paleogeography of the Late Cretaceous of the western interior of middle North America :  coal distribution and sediment accumulation / 
by Laura N. Robinson Roberts and Mark A. Kirschbaum. 
 - Washington :  Denver, CO :  U.S. G.P.O. ;  U.S. Geological Survey, Information Services,  1995. 
 - iv, 115 p. :  col. ill., maps (some col.) ;  28 cm. 
 - U.S. Geological Survey professional paper ;  1561 .
<br/><br/> Includes one folded plate in pocket. 
<br/><br/>Includes bibliographical references (p. 49-63). 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Paleogeography--Cretaceous.<br/>Paleogeography--West (U.S.)<br/>Coal--Geology--West (U.S.)
<br/><br/><label>LC Class. No.: </label>QE501.4.P3  / R63 1995