TY  - BOOK
AU  -  Cunningham,F.Gary
AU  -  Williams,J.Whitridge
TI  -  Williams obstetrics / 
SN  -  0071413154
PY  - 2005///
CY  -  New York: 
PB  -  McGraw-Hill, 
KW  -  Obstetrics
N1  -  Includes bibliographical references and index
ER  -