Hughes, Richard E.  1947- <br/><br/>
Diachronic variability in obsidian procurement patterns in northeastern California and south central Oregon / 
by Richard E. Hughes. 
 - Berkeley, CA :  University of California Press,  1986. 
 -  ill. 
 - University of California publications in anthropology ;  v. 17 .
<br/><br/><label>ISBN: </label>0520096991 (alk. paper) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Indians of North America--Implements.--California<br/>Indians of North America--Implements.--Oregon<br/>Obsidian--California.<br/>Obsidian--Oregon.<br/>X-ray spectroscopy in archaeology.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>California--Antiquities.<br/>Oregon--Antiquities.
<br/><br/><label>LC Class. No.: </label>E78.C15  / H84 1986 
<br/><br/><label>Dewey Class. No.: </label>979.4/01�19