Issues for today
Subtitle: acid rain, genetic engineering, herbicides & pesticides, the greenhouse effect
By: authors, John Marean, Robert Ritter, John George ; senior science consultant, William L. Smallwood.
Contributors: George, John.; Ritter, Robert.
Publisher: GLC
Published: 1985
Place of publication: Agincourt, ON
Language: eng
Number of pages: 105
Subjects: Ecology -- Study and teaching.; Environmental education.
Notes: CR