Conservation of renewable natural resources
Subtitle: some fundamental aspects of the problem
By: by Raphael Zon....[et al.].
Contributors: Zon, Raphael.; University of Pennsylvania. BicentennialConference.
Publisher: Kennikat Press
Published: 1969
Place of publication: Port Washington
Language: eng
Notes: Papers presented at the University of Pennsylvania Bicentennial Conference.

Originally published: University of Pennsylvania Press, 1941.