TY  - BOOK
AU  - AHLUWALIA V.K.
TI  - Environmental studies:  Basic concepts   
SN  - 9788179933213
U1  - U:(G:55), Q3 
PY  - 2013///
CY  -  New Delhi 
PB  - TERI         
KW  - Geography
N1  - Bibliography chapterwise; Appendix: p 269-95
ER  -