Air, Water & Land Pollution /
500.1 500 / PHU
Phukan, S.D. .
Air, Water & Land Pollution / S.D. Phukan. - 1st / . - Gauhati : Assam Science Society , 1978. - 242 ; NULL.
NULL
Rs.15/-
Natural sciences & mathematics
P9809 : 500.1 PHU 1 : Books
9810 : 500.1 PHU 2 : Books