Bark beetle risk in mature ponderosa pine forests in western Montana

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100	1	⊔	‡aJohnson, Philip C. ‡q(Philip Cornwell), ‡d1907-
245	1	0	‡aBark beetle risk in mature ponderosa pine forests in western Montana / ‡cPhilip C. Johnson.
260	⊔	⊔	‡aOgden, Utah : ‡bIntermountain Forest & Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, ‡c1972.
300	⊔	⊔	‡a32 p. : ‡bill. ; ‡c27 cm.
490	⊔	0	‡aUSDA Forest Service research paper INT. ‡v119
504	⊔	⊔	‡aBibliography: p. 31-32.
538	⊔	⊔	‡aMode of access: Internet.
650	⊔	0	‡aBark beetles ‡zMontana.
650	⊔	0	‡aPonderosa pine ‡xDiseases and pests ‡zMontana.
710	2	0	‡aIntermountain Forest and Range Experiment Station (Ogden, Utah)
CID	⊔	⊔	‡a007416211
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DAT	1	⊔	‡a20141112162646.0 ‡b2025-01-01T18:43:16Z
DAT	2	⊔	‡a2025-01-01T18:30:02Z
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