Forestry An International Journal of Forest Research · 1963 · 46 citations · 0 references
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Outdoor Recreation for America J. J. MACGREGOR J. J. MACGREGOR Search for other works by this author on: Oxford Academic Google Scholar Forestry: An International Journal of Forest Research, Volume 36, Issue 1, 1963, Page 90, https://doi.org/10.1093/forestry/36.1.90 Published: 01 April 1963