A text book of environmental sciences
Purohit , S.S.
A text book of environmental sciences as per UGC unified syllabus - India Sarswati Purohit for Student Edition 2006 - [xvii] , 397 p. some Colour 25 cm.
8188826146
ECOSYSTEM
ECOLOGY
ENVIRONMENTAL SCIENCE
FOREST RESOURCES
WATER RESOURCES
577 / PUR
A text book of environmental sciences as per UGC unified syllabus - India Sarswati Purohit for Student Edition 2006 - [xvii] , 397 p. some Colour 25 cm.
8188826146
ECOSYSTEM
ECOLOGY
ENVIRONMENTAL SCIENCE
FOREST RESOURCES
WATER RESOURCES
577 / PUR