TY  - BOOK
AU  - Sharma, P. D.
TI  - Environmental biology
SN  - 8171333230
U1  - 574.24 
PY  - 1998///
CY  - Meerut
PB  - Rastogi Publications
KW  - Biology
KW  - Environmental biology
N1  - Includes glossary, bibliographical references and index
ER  -