TY  - BOOK
TI  - Bulletin of hygiene
T2  - 35
U1  - 614 
PY  - 1960///
PB  - U. S. Dept of health ed. & welfare, washington
KW  - Health and Hygiene
KW  - Hygiene--Abstracts | Public health--Abstracts--London School
N1  - Hygiene; Public Health; Preventive Medicine; Epidemiology; WHO
ER  -