TY  - BOOK
AU  - Valanis, Barbara
TI  - Epidemology in nursing and health care 
AV  - RA 652 V35 1986
PY  - 1986///
CY  - Norwalk, Conn. 
PB  - : Appleton-Century-Crofts
KW  - Epidemología
KW  - Enfermería
ER  -