Mason, Roger D. <br/><br/>
Weighing and counting shell :   a response to glassow and claassen. 

 - Washington-US :   Society for American Archaeology,   2000. 
 - p. 757-761 :   il. 
 - Trimestral 
 - Vol. 65, no, 4 (Oct 2000) 
 - American Antiquity ;   vol. 65 no. 4 .
 - Washington.   Society for American Archaeology. .
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