TY  - BOOK
AU  - Bhatia,Balraj  .
TI  - Selected topics in environmental biology / 
SN  - 0080212107
U1  - 578.7 
PY  - 1977///
CY  - Oxford : 
PB  - Pargamon Press , 
KW  - ENVIRONMENT BIOLOGY
N1  - Includes bibliographical references and index
ER  -