National Recyclable Commodities Act of 1989 : hearing before the Subcommittee on the Consumer of the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred First Congress, second session, on S. 1884, to promote the use of recycled materials derived from municipal refuse, and for other purposes, June 13, 1990. (U.S. G.P.O. :, 1990)