Pollution, problems & solutions
By: [Judy Braus, editor]
Contributors: Braus, Judy; National Wildlife Federation
Series: Ranger Rick's naturescope -- v. 4, no. 5; Ranger Rick's naturescope -- v. 4, no. 5
Publisher: National Wildlife Federation
Published: 1990
Place of publication: Washington, D.C
Language: eng
Number of pages: 84
Subjects: Pollution -- Study and teaching (Elementary); Air -- Pollution -- Study and teaching (Elementary); Water -- Pollution -- Study and teaching (Elementary)
Other titles: Ranger Rick
Notes: Cover title

Includes Pollution index to issues of Ranger Rick

Includes bibliographical references (p. 84)