Impact of air pollutants on agriculture productivity : joint hearing before the Subcommittee on Natural Resources, Agriculture Research and Environment of the Committee on Science and Technology and the Subcommittee on Department Operations, Research and Foreign Agriculture of the Committee on Agriculture, U.S. House of Representatives, Ninety-seventh Congress, first session, July 9, 1981
United States.Congress.House.Committee on Science and Technology.Subcommittee on Natural Resources, Agriculture Research, and Environment.
United States.Congress.House.Committee on Agriculture.Subcommittee on Department Operations, Research, and Foreign Agriculture.
Washington U.S.G.P.O.
1981
No. 97-59
Agricultural pollution