How to conduct a cleanup campaign.
Contributors: United States. Dept. of the Interior
Publisher: U.S. Dept. of the Interior
Published: 1971
Place of publication: [Washington, D.C
Language: eng
Number of pages: 16
Subjects: Human ecology.
Other titles: Johnny Horizon Program.
Notes: Title from cover.

"JH 23 (May 1971)."

Issued as part of the Johnny Horizon Program of the Dept. of the Interior.