Location | Call Number | Status | Date Due |
---|---|---|---|
M.E. Callaghan Intermediate School | 574.5 HIR | Available |
Bibliography: p. [181]-182.
Brief biographies of eight American pioneers in conservation and ecology: Henry David Thoreau, George Perkins Marsh, Frederick Law Olmsted, John Muir, Gifford Pinchot, George Norris, Aldo Leopold, and Rachel Carson.