Hill, Thelma P.,  1917- <br/><br/>
Chemical composition of sedimentary rocks in Colorado, Kansas, Montana, Nebraska, North Dakota, South Dakota, and Wyoming. 
Compiled by Thelma P. Hill, Marian A. Werner, and M. Julia Horton. With an introd. by William W. Rubey. 
 - Washington,  U.S. Govt. Print. Off.,  1967. 
 - v, 241 p.  illus., maps (1 col.)  29 cm. 
<br/><br/> Part of illustrative matter folded in pocket. 
<br/><br/>Bibliography: p. 225-231. 
<br/><br/><label>LCCN: </label>gs 67000169  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sedimentary rocks<br/>Rocks--Analysis<br/>Petrology--West (U.S.)
<br/><br/><label>LC Class. No.: </label>QE75  / .P9 no. 561 
<br/><br/><label>Dewey Class. No.: </label>552/.5 
<br/><br/><label>Gov. Doc. Class. No.: </label>I 19.16:561