TY  - BOOK
AU  - Crawford,J.Selwyn
TI  - Principles and practice of obstetric anaesthesia 
SN  - 0632003820 
AV  - MED RG732 C7 
PY  - 1978///
CY  - Oxford 
PB  - Blackwell Scientific 
KW  - Anesthesia in obstetrics
ER  -