The impact of air pollution on national park units
Subtitle: a summary of hearings held by the House Subcommittee on National Parks and Recreation, May 20-21, 1985, prepared at the request of the House Committee on Interior and Insular Affairs, Subcommittee on National Parks and Recreation
By: George H. Siehl ... [et al.]
Contributors: Siehl, George H; United States. Congress. House. Committee on Interior and Insular Affairs. Subcommittee on National Parks and Recreation; Library of Congress. Congressional Research Service
Series: Major studies and issue briefs of the Congressional Research Service -- 1986-87, reel 6, fr. 000001
Publisher: Congressional Research Service, Library of Congress
Published: 1985
Place of publication: Washington, D.C
Language: eng
Format: Microform
Number of pages: 96
Subjects: National parks and reserves -- United States; Air -- Pollution -- United States
Notes: Cover title

"June 1985."

"Environment and Natural Resources Policy Division."

Includes bibliographical references

Microfilm. Frederick, MD : University Publications of America, 1987. on 1 microfilm reel ; 35 mm. Low reduction. (Major studies and issue briefs of the Congressional Research Service. 1986-1987 supplement ; reel 6, fr. 000001)