Duke University. School of Forestry. (1941). Duke university School of Forestry lectures. School of Forestry.
Citace podle Chicago (17th ed.)Duke University. School of Forestry. Duke University School of Forestry Lectures. Durham, N.C.: School of Forestry, 1941.
Citace podle MLA (8th ed.)Duke University. School of Forestry. Duke University School of Forestry Lectures. School of Forestry, 1941.
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