Standard periodical directory 

 - 6th ed.  
 - New York:   Oxbridge Communications, Inc.,   1978 
 - xvii, 1680p. 
<br/><br/><label>ISBN: </label>0-917460-03-0 
<br/><br/><label>Universal Decimal Class. No.: </label>R 05(058.7)(71+73) K4;L8