environmental crisis
By: edited by Harold W. Helfrich. (Vol.1), Man's struggle to live with himself.
Contributors: Helfrich, Harold W.; Yale University. School of Forestry.
Publisher: Yale University Press
Published: 1970
Place of publication: New Haven; London
Language: eng
Number of pages: 187
Subjects: Pollution.; Man -- Influence on nature.; Natural resources.
Other titles: Issues in environmental crises.