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By: Mason, Lola. - Technology & Development Center (San Dimas, Calif.)Edition:Publication info: [San Dimas, Calif.], U.S. Dept. of Agriculture, Forest Service, Technology & Development Center, 1991Volume: 1991Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects: Bridges Rivers Stream crossing, Military Transportation WetlandsBHL Collections: