Silviculture; report on lectures Roth, Filibert, 1858-1925 creator text book Ann Arbor, Mich University of Michigan 1911-1912 1912
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ENG "Forestry 2a, 2b." Forests and forestry https://www.biodiversitylibrary.org/bibliography/30432 21105428 10.5962/bhl.title.30432