APA (7th ed.) Citation

United States. National Park Service. Heritage Preservation Services. (1997). The Secretary of the Interior's proposed historic preservation professional qualification standards. Dept. of the Interior, National Park Service, National Center for Cultural Resources Stewardship & Partnerships, Heritage Preservation Services.

Chicago Style (17th ed.) Citation

United States. National Park Service. Heritage Preservation Services. The Secretary of the Interior's Proposed Historic Preservation Professional Qualification Standards. [Washington, D.C.]: Dept. of the Interior, National Park Service, National Center for Cultural Resources Stewardship & Partnerships, Heritage Preservation Services, 1997.

MLA (9th ed.) Citation

United States. National Park Service. Heritage Preservation Services. The Secretary of the Interior's Proposed Historic Preservation Professional Qualification Standards. Dept. of the Interior, National Park Service, National Center for Cultural Resources Stewardship & Partnerships, Heritage Preservation Services, 1997.