Encyclopaedia of environmental studies:
Trivedi, P.R.
Encyclopaedia of environmental studies: Environmental Ecology. - New Delhi. Akashdeep Publishing House 1992 - v, 502p. ill. 22cm
8171582796
Environmental science.
333.003 TRI
Encyclopaedia of environmental studies: Environmental Ecology. - New Delhi. Akashdeep Publishing House 1992 - v, 502p. ill. 22cm
8171582796
Environmental science.
333.003 TRI