Foreign trade and tariff proposals. :
Hearings, Ninetieth Congress, second session.

APA Citation

United States. Congress. House. Committee on Ways and Means. (1968). Foreign trade and tariff proposals.: Hearings, Ninetieth Congress, second session. Washington: U.S. Govt. Print. Off.

MLA Citation

United States. Congress. House. Committee on Ways and Means. Foreign Trade And Tariff Proposals.: Hearings, Ninetieth Congress, Second Session. Washington: U.S. Govt. Print. Off, 1968.

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