Orbis  [microform]. 

 - Philadelphia, USA :  Foreign Policy Research Institute,  1957 
 - 4 microfilm reels ;  35mm. 
 - Vol. 30 (Spring 1986-Winter 1987)- Vol. 33 (Winter-Fall 1988). 
<br/><br/><br/>Requires the use of a microfilm reader. 
 = Orbis 
<br/><br/><label>Subjects--Topical Terms: </label><br/>World politics--1955---Periodicals