Roehler, Henry W. <br/><br/>
Depositional environments of coal-bearing and associated formations of Cretaceous Age in the National Petroleum Reserve in Alaska / 
by Henry W. Roehler 
 - Washington, D. C. :  United States Govt. Printing Office,  1987 
 - 16 p. :  ill. ;  28 cm. 
 - U.S. Geological survey bulletin  v.1575 .
<br/><br/>Includes bibliographical references 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology, Stratigraphic--Congresses<br/>Geology--Alaska--National Petroleum Reserve<br/>Coal--Geology--Alaska--National Petroleum Reserve