Ulrich <br/><br/>
Ulrich's International periodical directory, 14th ed : Vol 1, 1971-72 

 - New York  R.R.Bowker  1971 
 - xxvi,2,1006 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>
<br/><br/><label>Dewey Class. No.: </label>16.05  / Ulr