TY  - BOOK
AU  - Diaz Mejia, Guillermo
AU  - Vandale T, Susan
TI  - Health Services Research
U1  - 362.1 
PY  - 1984///
CY  - Cocoyoc, Morelos
PB  - OPS , WHO,Secretary of Health and Welfare
KW  - Servicios de Salud
KW  - Métodos
ER  -