imprimirimprimir | fechar    
Vital and health statistics - Series 21 - Data on natality, marriage, and divorce / U.S. National Center for Health Statistics.-- (1989) -.-- Hyattsville ISSN 1057-7629

 
Texto Completo Gratuito - Livre acesso
URL http://www.cdc.gov/nchs/products/pubs/pubd/series/sr21/ser21.htm