TY  - BOOK
AU  - Vaux,Norris Wistar
AU  - Castallo,Mario Alberto
TI  - The mechanics of obstetrics,
AV  - RG524 .V3 1948
PY  - 1948///
CY  - Philadelphia
PB  - F. A. Davis
N1  - Earlier editions by Norris W. Vaux and Mario A. Castallo
ER  -