TY  - BOOK
AU  - Dhaliwal, G. S.
AU  - Sangha, G. S.
AU  - Ralhan, P.K.
TI  - Fundamentals of environmental science
SN  - 8176635359
U1  - 577.55 DHA 
PY  - 2000///
CY  - New Delhi, Chennai
PB  - Kalyani publishers
KW  - Fundamentals of environmental science
KW  - Water quality
KW  - Soils
KW  - Quality
N1  - includes bibliographical references and index
ER  -