TY  - BOOK
AU  - Markandey, Dilip Kumar.
AU  - Markandey, Neelima Rajvaidya.
TI  - Environmental surveillance
SN  - 8131300064
U1  - 363.73 
PY  - 2006///
CY  - New Delhi
PB  - A. P. H.
KW  - Environmental sciences -- Dictionaries
KW  - Environmental monitoring -- Dictionaries
KW  - Environmental monitoring
KW  - Environmental sciences
ER  -