Environmental science :
Nebel, Bernard J.
Environmental science : the way the world works / by Bernard J. Nebel, Richard T. Wright. - 4th ed. - Englewood Cliffs, N.J. : Prentice-Hall, 1993. - xxi, 630 p. : ill.
Includes bibliographical references and index. Contents : What ecosystems are and how they work--Finding a balance between population, soil, water, and agriculture.
0132854465
Environmental sciences.
Environmental science : the way the world works / by Bernard J. Nebel, Richard T. Wright. - 4th ed. - Englewood Cliffs, N.J. : Prentice-Hall, 1993. - xxi, 630 p. : ill.
Includes bibliographical references and index. Contents : What ecosystems are and how they work--Finding a balance between population, soil, water, and agriculture.
0132854465
Environmental sciences.