The Earth as transformed by human action : global and regional ch anges in the biosphere over the past 300 years - Turner, B. L. (Billie Lee), 1925- (Cambridge : Cambridge University Press with Clark University, 1990)
Based on papers presented at a symposium held at Clark University, W orcester, Mass., Oct. 25-30, 1987.
Includes bibliographical references and index.
Keywords: Nature -- Effect of human beings on -- Congresses; Human ecology -- Congresses; Global environmental change; Population -- Congresses