TY  - BOOK
AU  - Gary Cunningham
AU  - Norman F. Gant
AU  - Kenneth J. Leveno
TI  - Williams obstetricia
SN  - 950-06-0429-9
U1  - 618.2 
PY  - 2002///
CY  - Buenos Aires AR
PB  - Panamericana
ER  -