The economics of recycling waste materials :
hearings, Ninety-second Congress, first session. November 8 and 9, 1971.

APA Citation

United States. Congress. Joint Economic Committee. Subcommittee on Fiscal Policy. (1972). The economics of recycling waste materials: hearings, Ninety-second Congress, first session. November 8 and 9, 1971. Washington: U.S. Govt. Print. Off..

MLA Citation

United States. Congress. Joint Economic Committee. Subcommittee on Fiscal Policy. The Economics of Recycling Waste Materials: Hearings, Ninety-second Congress, First Session. November 8 And 9, 1971. Washington: U.S. Govt. Print. Off., 1972.

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