TY  - BOOK
AU  - Joshi, P. C.
TI  - A textbook of ecology and environment [based on UGC syllabus]
SN  - 8183183220
U1  - 574.5 JOS 
PY  - 2005///
CY  - Mumbai
PB  - Himalaya Publishing House
N1  - Includes bibliographical references
ER  -