Pfaltzgraff, Robert L. <br/><br/>
The study of international relations:  a guide to information sources/ 
Robert L. Pfaltzgraff and Medford Massachusetts. 
 - Detroit, Mich. :  Gale Research Co.,  1977. 
 - 155 p. ;  22 cm. 
 - International relations information guide series  v.5 .
<br/><br/><label>ISBN: </label>0810313316 
<br/><br/><label>Subjects--Topical Terms: </label><br/>International relations--Bibliography.