TY  - BOOK
AU  - VERMA S.P;AGARWALA V.K
TI  - ENVIRONMENTAL BIOLOGY
SN  - 9788121908597
U1  - 660.6 
PY  - 1998///
CY  - NEWDELHI
PB  - S.CHAND & CO-1
KW  - Environ Biotech & Biotechnology
ER  -