Site concept plan :
Saltsburg /
America's Industrial Heritage Project, Pennsylvania.

APA Citation

United States. National Park Service., America's Industrial Heritage Project. (1989). Site concept plan: Saltsburg. [Hollidaysburg, PA]: U.S. Dept. of the Interior, National Park Service.

MLA Citation

United States. National Park Service, and America's Industrial Heritage Project. Site Concept Plan: Saltsburg. [Hollidaysburg, PA]: U.S. Dept. of the Interior, National Park Service, 1989.

Warning: These citations may not always be complete (especially for serials).