TY  - GEN
AU  - Purohit, S.S.
AU  - Shammi, Q.J.
AU  - Agrawal, A.K.
TI  - A Textbook of Environmental Sciences: As per unified UGC Syllabus
SN  - 8188826146
AV  - GE140 PUR 2004 
PY  - 2004///
CY  - Jodhpur
PB  - Student Edition
KW  - Renewable and non renewable resources
N1  - Environmental Science
ER  -