Hard, Robert J. <br/><br/>
Mobility, land frangmentation, and economic rationality. 

 - Washington, DC :   American Anthropological Association,   1993. 
 - p. 1005-1007 
 - trimestral 
 - Vol.95, no.4(Dec.1993) 
 - American Anthropologist ;   vol.95, no.4 .
 - Estados Unidos.   American Anthropological Association. .
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