Environmental studies : Earth as a living planet /
Botkin, Daniel B.
Environmental studies : Earth as a living planet / Daniel B. Botkin and Edward A. Keller - 2nd ed. - Colombus : Merril Publishing Company, 1987 - 685 p. : ill. ; 29 cm.
0675204623
Ecology
Pollution--Environmental aspects
Conservation of natural resources
Environmental studies : Earth as a living planet / Daniel B. Botkin and Edward A. Keller - 2nd ed. - Colombus : Merril Publishing Company, 1987 - 685 p. : ill. ; 29 cm.
0675204623
Ecology
Pollution--Environmental aspects
Conservation of natural resources
