TY  - GEN
AU  -   Hopkins, Edward Scott
AU  - Schulze, Wilmer Henry
TI  - The practice of Sanitation
U1  - 391.36 
PY  - 1954///
CY  - Baltimore
PB  - The William and Wilkins Company
KW  -   Sanitation
KW  -   Sanitary engineering
N1  -   Includes photos
ER  -