APA (7th ed.) Citation

Siehl, G. H. (1991). Establishment of new national park system units: A brief review of procedures, criteria and alternatives. Congressional Research Service, Library of Congress.

Chicago Style (17th ed.) Citation

Siehl, George H. Establishment of New National Park System Units: A Brief Review of Procedures, Criteria and Alternatives. [Washington, D.C.]: Congressional Research Service, Library of Congress, 1991.

MLA (9th ed.) Citation

Siehl, George H. Establishment of New National Park System Units: A Brief Review of Procedures, Criteria and Alternatives. Congressional Research Service, Library of Congress, 1991.