Becthnk. 

 - [s.n] :    [s.l],    1960- 
 - v. :    ill. ;    26 cm. 
 - Quarterly 
 - No. 5 (1970)- 
<br/><br/>  Latest issue consulted: No. 23 (1975). 
<br/><br/><label>ISSN: </label>0132-4624/0024-0818 
<br/><br/><label>Dewey Class. No.: </label>307.1147