American library directory, 1989-90. 

 - 42 
 - New York :  Bowker,  1989. 
 - 2 v. 
<br/><br/> Monografía 
<br/><br/><label>ISBN: </label>0835225798 
<br/><br/><label>Subjects--Index Terms: </label>Bibliotecas - E.U. - Directorios 
<br/><br/><label>LC Class. No.: </label>C/Z731/A49 1989