TY  - BOOK
AU  - Mathur H S
AU  -  Singh R B
TI  - Trends in ecological geography
U1  - U:(G:5), N0 
PY  - 1990///
CY  - Jaipur
PB  - Pointer Publishers India        
KW  - Geography-Modern
N1  - Bib chapterwise
ER  -