Environmental geology Indian context
Valdiya, K.S.
Environmental geology Indian context - New Delhi Tata McGraw-Hill Pub Co. 1987 - xii,583p. 25cm.
Geology-environmental aspects
550 / V15E
Environmental geology Indian context - New Delhi Tata McGraw-Hill Pub Co. 1987 - xii,583p. 25cm.
Geology-environmental aspects
550 / V15E