Otterbein, Keith F. <br/><br/>
The evolution of war :  a cross-cultural study / 
Keith F. Otterbein 
 - New Haven :  HRAF Press,  1970 
 - 165 p. ;  23 cm. 
<br/><br/>Bibliography : p. 150-165 
<br/><br/><label>Subjects--Topical Terms: </label><br/>War