FRASS-DROP MEASUREMENT IN STUDIES OF THE EUROPEAN SPRUCE SAWFLY. University of Michigan, School of Forestry and Conservation. Bulletin No. 12.
University of Michigan Press: Ann Arbor. 1949. Item #96-9370
9 x 6, wrappers, 58 pp, 1 plate, 7 figures, bib, library stamps to front wrapper else vg. FIRST ED.
Price: $15.00
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