Ulrich's international periodicals directory:1967-68 

 - New York:  R. R. Bowker company,  1968 
 - xxvii, 541-1315p.:  27 cm 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Periodicals<br/>Directories<br/>BIBLIOGRAPHIES
<br/><br/><label>Dewey Class. No.: </label>050  / ULR