Drug efficacy :
hearings before a subcommittee of the Committee on Government Operations, House of Representatives, Ninety-first Congress, first session.

APA Citation

United States. Congress. House. Committee on Government Operations. Intergovernmental Relations Subcommittee. (1970). Drug efficacy: hearings before a subcommittee of the Committee on Government Operations, House of Representatives, Ninety-first Congress, first session. Washington: U.S. Govt. Print. Off.

MLA Citation

United States. Congress. House. Committee on Government Operations. Intergovernmental Relations Subcommittee. Drug Efficacy: Hearings Before a Subcommittee of the Committee On Government Operations, House of Representatives, Ninety-first Congress, First Session. Washington: U.S. Govt. Print. Off, 1970.

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