TY  - BOOK
AU  - Patel, B.
TI  - Management of Environment
U1  - 613.1 
PY  - 1980///
CY  - New Delhi
PB  - Wiley Eastern Pvt. Ltd.
KW  - Medical sciences
KW  - Technology (Applied sciences)
KW  - Environmental factors
KW  - Hygiene
ER  -