TY  - GEN
AU  - Cunningham, William P.
TI  - Principlels of environmental science: inquiry and applications
SN  - 978-0-07-064772-5:
U1  - 574.5 
PY  - 2008///
CY  - New Delhi
PB  - Tata McGraw- Hill Education
KW  - ECOLOGY
N1  - Includes glossary and index
ER  -