APA (7th ed.) Citation

Library of Congress. Congressional Research Service & ProQuest (Firm). (1985). Comments on Department of the Interior Memorandum of September 20, 1985 Entitled "Protection of National Park System Units from the Adverse Effects of Air Pollution". [publisher not identified].

Chicago Style (17th ed.) Citation

Library of Congress. Congressional Research Service and ProQuest (Firm). Comments on Department of the Interior Memorandum of September 20, 1985 Entitled "Protection of National Park System Units from the Adverse Effects of Air Pollution". [Place of publication not identified]: [publisher not identified], 1985.

MLA (9th ed.) Citation

Library of Congress. Congressional Research Service and ProQuest (Firm). Comments on Department of the Interior Memorandum of September 20, 1985 Entitled "Protection of National Park System Units from the Adverse Effects of Air Pollution". [publisher not identified], 1985.