Encyclopaedia of World Environment: Environment (Volume II)
Trivedi, P. R.
Encyclopaedia of World Environment: Environment (Volume II) - New Delhi: A P H, 1999. - 358p.
Ecology
577.03 TRI
Encyclopaedia of World Environment: Environment (Volume II) - New Delhi: A P H, 1999. - 358p.
Ecology
577.03 TRI