TY  - BOOK
AU  - Dhaliwal,G.S.
AU  - Kler,D.S
TI  - Principles of agricultural ecology
SN  - 8174930116
U1  - 574.5264 
PY  - 1995///
CY  - Bombay
PB  - Himalaya Pub. House
KW  - Agricultural ecology
KW  - Agriculture
KW  - Environmental aspects
N1  - Includes bibliographical references and index
ER  -