Our changing Earth
By: by Thomas Y. Canby ; prepared by the Book Division, National Geographic Society.
Contributors: National Geographic Society (U.S.). Book Division.
Publisher: The Society
Published: 1994
Place of publication: Washington, D.C
Language: eng
Number of pages: 199
Subjects: Environmentalism.; Environmental degradation -- Citizen participation.; Nature -- Effect of human beings on.; Conservation of natural resources.
Notes: Includes index.