Chicago

Senate, Congress." S. Hrg. 90 - National Park Foundation: hearing before the Subcommittee on Parks and Recreation of the Committee on Interior and Insular Affairs, United States Senate, Ninetieth Congress, first session, on S. 814, a bill to establish the National Park Foundation, July 20, 1967.. Government. U.S. Government Publishing Office https://www.govinfo.gov/app/details/CHRG-90shrg82618.

APA

Senate, Congress. (1967, July 20). Senate Hearing, 90th Congress - National Park Foundation: hearing before the Subcommittee on Parks and Recreation of the Committee on Interior and Insular Affairs, United States Senate, Ninetieth Congress, first session, on S. 814, a bill to establish the National Park Foundation, July 20, 1967.. [Government]. U.S. Government Publishing Office. https://www.govinfo.gov/app/details/CHRG-90shrg82618

MLA

Senate, Congress. Senate Hearing, 90th Congress - National Park Foundation: hearing before the Subcommittee on Parks and Recreation of the Committee on Interior and Insular Affairs, United States Senate, Ninetieth Congress, first session, on S. 814, a bill to establish the National Park Foundation, July 20, 1967.. U.S. Government Publishing Office, (20 Jul 1967), https://www.govinfo.gov/app/details/CHRG-90shrg82618

Bluebook

Senate, Congress, National Park Foundation: hearing before the Subcommittee on Parks and Recreation of the Committee on Interior and Insular Affairs, United States Senate, Ninetieth Congress, first session, on S. 814, a bill to establish the National Park Foundation, July 20, 1967., GovInfo, (July 20, 1967), https://www.govinfo.gov/app/details/CHRG-90shrg82618