Encuesta nacional de fecundidud ecuador-1979 / 
Instituto Nacional de Estadisticay Censos 
 - [S.l. :  s.n.],  1979 
 - 272 p. :  ill. ;  29 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Census--United States<br/>Statistics--United States
<br/><br/><label>Dewey Class. No.: </label>317.3