Instructions to depository libraries. 

 - Washington, D. C. :  Government Printing Office,  1988. 
 - 278 p. 
 - Depository library .
<br/><br/> Monografía 
<br/><br/><label>Subjects--Index Terms: </label>Bibliotecas de Depósito - E.U 
<br/><br/><label>LC Class. No.: </label>C/Z1223.A12I57