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