Environmental pollution : conservation and planning
Nath, Pashupati
Environmental pollution : conservation and planning - - Allahabad Chugh Publications, 1990 - v.1 21 cm - .
81-85076-84-71
Environmental engineering-India
Pollution-India
Environmental protection-India
628.5 Nat-1(2)
Environmental pollution : conservation and planning - - Allahabad Chugh Publications, 1990 - v.1 21 cm - .
81-85076-84-71
Environmental engineering-India
Pollution-India
Environmental protection-India
628.5 Nat-1(2)