United States. Congress. Senate. Committee on Environment and Public Works. Subcommittee on Toxic Substances, Environmental Oversight, Research and Development. (1989). Chemicals and food crops: Hearing before the Subcommittee on Toxic Substances, Environmental Oversight, Research and Development of the Committee on Environment and Public Works, United States Senate, One Hundred First Congress, first session, May 15, 1989. U.S. Government Printing Office.
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on Environment and Public Works. Subcommittee on Toxic Substances, Environmental Oversight, Research and Development. Chemicals and Food Crops: Hearing Before the Subcommittee on Toxic Substances, Environmental Oversight, Research and Development of the Committee on Environment and Public Works, United States Senate, One Hundred First Congress, First Session, May 15, 1989. Washington: U.S. Government Printing Office, 1989.
MLA (9th ed.) CitationUnited States. Congress. Senate. Committee on Environment and Public Works. Subcommittee on Toxic Substances, Environmental Oversight, Research and Development. Chemicals and Food Crops: Hearing Before the Subcommittee on Toxic Substances, Environmental Oversight, Research and Development of the Committee on Environment and Public Works, United States Senate, One Hundred First Congress, First Session, May 15, 1989. U.S. Government Printing Office, 1989.