Boehm, Chritopher. <br/><br/>
Cooperation and prosocial behaviour. 

 - Washington, DC :   American Anthropological Association,   1993. 
 - p. 455-456 
 - trimestral 
 - Vol.95, no.2(Jun.1993) 
 - American Anthropologist ;   vol.95, no.2 .
 - Estados Unidos.   American Anthropological Association. .
<br/><br/> Comments on: General/Theoretical anthropology.