TY  - BOOK
AU  - The Johns Hopkins University
TI  - American journal of hygiene: Authors and subjects
T2  - 29-60
U1  - 614.05 
PY  - 1939///
PB  - The Johns Hopkins University
KW  - Health and Hygiene
KW  - Hygiene--Periodicals | Epidemiology--APHA--Historical
N1  - Hygiene; Public Health; American; Epidemiology; Preventive Medicine
ER  -