Environmental biology.
Trivedi, P.R.
Environmental biology. - 1st/ed. - India : Akashdeep Pub. House, c1991. - 392p. illus. (pbk) 22cm.
Ecology--c1991--India--paperback
Environmental science--c1991--India--paperback
Environmental biology. - 1st/ed. - India : Akashdeep Pub. House, c1991. - 392p. illus. (pbk) 22cm.
Ecology--c1991--India--paperback
Environmental science--c1991--India--paperback