TY  - BOOK
AU  - Gabbe,Steven G.
AU  - Niebyl,Jennifer R.
AU  - Simpson,Joe Leigh
TI  - Obstetrics : : normal and problem pregnancies 
SN  - 0443076901
PY  - 1996///
CY  - New York : 
PB  - Churchill Livingstone, 
KW  - Obstetrics
KW  - Pregnancy complications
KW  - Pregnancy
ER  -