Botkin D.B.
Environmental studies: Earth as a living planet /second edition/ - 2 - America. Merill 1987. - 685 p.
Англи хэл.
0-675-20462-3 3000
enviromental ethics ecology living environment ecosystems and communities biograpy human populations
Environmental studies: Earth as a living planet /second edition/ - 2 - America. Merill 1987. - 685 p.
Англи хэл.
0-675-20462-3 3000
enviromental ethics ecology living environment ecosystems and communities biograpy human populations