United States. Congress. Senate. Committee on Interior and Insular Affairs & ProQuest (Firm). (1970). First annual environmental quality report: Hearing, Ninety-first Congress, second session ... August 13, 1970. U.S. Govt. Print. Off.
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on Interior and Insular Affairs and ProQuest (Firm). First Annual Environmental Quality Report: Hearing, Ninety-first Congress, Second Session ... August 13, 1970. Washington: U.S. Govt. Print. Off, 1970.
MLA (9th ed.) CitationUnited States. Congress. Senate. Committee on Interior and Insular Affairs and ProQuest (Firm). First Annual Environmental Quality Report: Hearing, Ninety-first Congress, Second Session ... August 13, 1970. U.S. Govt. Print. Off, 1970.