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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Otto, N. E. - Bartley, T. R. - Cunningham, D. W. - Evans, J. M. - Thullen, J. S.
    Edition: 2nd ed.
    Publication info: Denver, U.S. Dept. of the Interior, Water and Power Resources Service, 1980
    Holding Institution: U.S. Government Printing Office
    Subjects: Aquatic pests  Irrigation water  
  2. By: United States. Congress. House. Committee on Merchant Marine and Fisheries. - United States. Congress. House. Committee on Merchant Marine and Fisheries. Subcommittee on Merchant Marine. - United States. Congress. House. Committee on Merchant Marine and Fisheries. - United States. Congress. House. Committee on Merchant Marine and Fisheries. Subcommittee on Coast Guard and Navigation. - United States. Congress. House. Committee on Merchant Marine and Fisheries. Subcommittee on Fisheries Management.
    Publication info: Washington, U.S. G.P.O, 1994
    Holding Institution: Boston Public Library
    Subjects: Aquatic pests  Discharge of ballast water  Environmental aspects  Law and legislation  Management  Marine pollution  United States