TY  - BOOK
AU  - WHO
AU  - Who
TI  - Barrier contraceptives and spermicides: their role in family planning care
SN  - 9241561017
U1  - M09989 
PY  - 1987///
CY  - Reino Unido
PB  - World Health Organization
N1  - Recomendado para el área de biomédicas
ER  -