TY  - BOOK
AU  - Williams,Stephen J.
AU  - Guerra, Sandra J.,
TI  - Health care services in the 1990's: a consumer's  guide 
SN  - 0-257-93867-0
U1  - 362.1 
PY  - 1991///
CY  - New York
PB  - Praeger Publisher
KW  - Servicios de Salud
ER  -