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Children, nature, and the urban environment : proceedings of a symposium-fair : proceedings of the symposium-fair held 19-23 May, 1975 at the C. H. Marvin Center of the George Washington University, Washington, D.C. / planned and presented by Forest Service, USDA, Cook College, Rutgers, the State University of New Jersey, School of Education, George Washington University, in conjunction with the Pinchot Institute of Environmental Forestry Research, Consortium for Environmental Forestry Studies. |
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