United States. Congress. Senate. Committee on Energy and Natural Resources & ProQuest (Firm). (1988). Southwestern Pennsylvania Heritage Preservation Commission. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on Energy and Natural Resources and ProQuest (Firm). Southwestern Pennsylvania Heritage Preservation Commission. Washington: [publisher not identified], 1988.
MLA (9th ed.) CitationUnited States. Congress. Senate. Committee on Energy and Natural Resources and ProQuest (Firm). Southwestern Pennsylvania Heritage Preservation Commission. [publisher not identified], 1988.
Warning: These citations may not always be 100% accurate.