Ulrich's International Periodicals Directory 1992-93 /  Vol. III  Indexes 
Publisher: R.R. Bowker 
 - 31st ed. 
 - New Providence ;  New Jersey :  A Reed Reference Publishing Company,  1992. 
 - 6836 p. 
 - The Bowker International Serials Database .
<br/><br/>with appendix 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Periodical Directory<br/>Directory