TY  - BOOK
ED  - World health organization
TI  - International travel and health : vaccination requirements and health advice 
T2  - B R authorised reprint series
SN  - 8170186854
U1  - 613.68 
PY  - 1991///
CY  - Delhi
PB  - B R
KW  - health
KW  - international travel
ER  -