Williams, Howel,  1898- <br/><br/>
Geology of the Macdoel quadrangle, 
by Howell Williams, and Circular soil structures in northeastern California, by Peter H. Masson. 
 - San Francisco,  State of California, Dept. of Natural Resources, Division of Mines,  1949. 
 - 78 p.  illus., maps (part col.)  24 cm. 
 - California.  Dept. of Natural Resources.  Division of Mines.  Bulletin,  151 .
 - California.  Division of Mines and Geology.  Bulletin ;  no. 151. .
<br/><br/> Part of illustrative matter in pocket. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>LCCN: </label>gs 50000087  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--California--Macdoel quadrangle<br/>Soils--California--Siskiyou County.
<br/><br/><label>LC Class. No.: </label>TN24.C2  / A3 no. 151 
<br/><br/><label>Dewey Class. No.: </label>557.94