Dimitroff, Demetrio <br/><br/>
Conceptors de organisation administrative bibliotecaria 

 - Washington D. C.  Pan American Union  1968 
 - 22p  28 cm 
 - Cuadernos bibliotecologicos no. 47 .
<br/><br/><label>Dewey Class. No.: </label>Pam 025.1  / Dim