TY  - BOOK
AU  - Kumra,V.K.
AU  - Nag,Prithvish
AU  - Singh,Jagdish
TI  - Geography and environment
SN  - 8170226074 :
AV  - TD173 .G46
PY  - 1997///
CY  - New Delhi
PB  - Concept Pub
KW  - Environmental protection
N1  - Includes bibliographical references and index
ER  -