The selection system of silviculture in spruce-fir stands : procedures, early results, and comparisons with unmanaged stands

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100 1 ⊔ ‡aFrank, Robert M.
245 1 4 ‡aThe selection system of silviculture in spruce-fir stands : ‡bprocedures, early results, and comparisons with unmanaged stands / ‡cby Robert M. Frank and Barton M. Blum.
260 ⊔ ⊔ ‡aBroomall, Pa. : ‡bDept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, ‡c1978.
265 ⊔ ⊔ ‡a19008
300 ⊔ ⊔ ‡a15 p. : ‡bill. ; ‡c27 cm.
490 0 ⊔ ‡aUSDA Forest Service research paper NE ; 425
504 ⊔ ⊔ ‡aBibliography: p. 15.
538 ⊔ ⊔ ‡aMode of access: Internet.
650 ⊔ 0 ‡aSpruce ‡zUnited States.
650 ⊔ 0 ‡aForests and forestry ‡zUnited States.
650 ⊔ 0 ‡aFir.
700 1 ⊔ ‡aBlum, Barton M.
710 2 ⊔ ‡aNortheastern Forest Experiment Station (Radnor, Pa.)
710 1 ⊔ ‡aUnited States. ‡bForest Service
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