Ulrich's international periodicals directory. 

 - New York  Bowker. 
 - v.  26-29 cm. 
 - [1st]- ed.; 1932- 
<br/><br/> Vol. for 1943 called inter-American ed., with title also in Spanish; 1947 called Postwar ed. 
<br/><br/> Vol. for 1947 includes "A list of clandestine periodicals of World War II, by Adrienne Florence Muzzy." 
<br/><br/>Kept up to date between editions 1972-76 by Bowker serials bibliography supplement, ISSN 0000-0094; 1977- by Ulrich's quarterly, ISSN 0000-0507. 
<br/><br/><label>LCCN: </label>32016320 //r673 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Periodicals--Directories.<br/>World War--Underground literature--Bibliography.
<br/><br/><label>LC Class. No.: </label>Z 6941  / .U5