Guzman Valdivia, Isaac  (, 1887-) <br/><br/>
Inquietudes de nuestro tiempo 
/ Isaac Guzman Valdivia 
 - Mexico  : Limusa  , c1973. 
 - 134p. pb. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Problemas sociales---Mexico
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Mexico----Condiciones sociales
<br/><br/><label>Dewey Class. No.: </label>304 GUZ