Principles of international law concerning friendly relations and cooperation / 
edited by Milan Sahovic. 
 - Belgrade :  The Institute of International Politics and Economic,  1972. 
 - 450 p. ;  24 cm. 
 - Institute of International Politics and Economics, 1972 .
<br/><br/><label>ISBN: </label>0370000202 
<br/><br/><label>Subjects--Topical Terms: </label><br/>International law--Addresses, essays, lectures.