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Creator
- Cary, William M.1
- Citizens for Alternatives to Chemical Contamination.1
- East Michigan Environmental Action Council.1
- East, Ben.1
- Ecology Center of Ann Arbor.1
- Engler, John, 1948-1
- Fulton, Douglas.1
- Michigan Botanical Club.1
- Michigan Citizens Against Toxic Substances.1
- Michigan Environmental Council.1
- Michigan Natural Areas Council.1
- Michigan Nature Association.1
- Michigan United Conservation Clubs.1
- Mill Creek Research Council, inc.1
- Sax, Joseph L.1
- Sharkey, Reginald, 1913-20051
- Sheppard, Glen, 1936-1
- Sierra Club. Michigan Chapter.1
- Symon, Charles.1
- University of Michigan. Dept. of History.1