United States. Congress. House. Committee on Interior and Insular Affairs. Subcommittee on National Parks and Recreation. (1968). The North Cascades: Hearings, Ninetieth Congress, second session .. U.S. Govt. Print. Off..
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Interior and Insular Affairs. Subcommittee on National Parks and Recreation. The North Cascades: Hearings, Ninetieth Congress, Second Session .. Washington: U.S. Govt. Print. Off., 1968.
MLA (8th ed.) CitationUnited States. Congress. House. Committee on Interior and Insular Affairs. Subcommittee on National Parks and Recreation. The North Cascades: Hearings, Ninetieth Congress, Second Session .. U.S. Govt. Print. Off., 1968.
Warning: These citations may not always be 100% accurate.