Copyright Bulletin. 

 - Paris :  Unesco,  1959. 
 - 241 p. ;  22 cm. 
<br/><br/>V.12-- ; 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>Copyright bulletin.
<br/><br/><label>Dewey Class. No.: </label>655.6 / U3u