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  1. By: Baril, Steven F. - Sullivan, Daniel, - Montana. Environmental Management Division. Technical Services Bureau.
    Publication info: Helena, Mont, Montana Dept. of Agriculture, Environmental Managment Division, Technical Services Bureau, [1983]
    Holding Institution: Montana State Library
  2. By: Sullivan, Daniel, - Baril, Steven F. - Montana. Environmental Management Division. Technical Services Bureau.
    Publication info: Helena, Mont, Montana Dept. of Agriculture, Environmental Management Division, Technical Services Bureau, [1981]
    Holding Institution: Montana State Library
  3. By: Baril, Steven F. - Montana. Environmental Management Division. Technical Services Bureau.
    Publication info: Helena, Mont, Montana Dept. of Agriculture, Environmental Management Division, Technical Services Bureau, [1981]
    Holding Institution: Montana State Library