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	1.	No cover image available Detecting subout break populations of the douglas - fir tussock moth / by Richard R. Mason by United States. Department of Agriculture-forest service Mason, Richard R United States. Department of Agriculture Series: USDA forest service research paper PNW-23B 1978 Material type: Text; Format: print ; Literary form: Not fiction Language: English Publication details: Washington, D.C. : U.S. Government Printing Office, 1978 Availability: Items available for loan: National Library of India (1)Call number: US 634.909795 Un 31. Place hold Request article Save to lists
	2.	No cover image available Forest insect & disease leaflet : douglas fire tussock moth / Boyd E. Wickman, Richard R. Mason and Galen C. Trostle by Wickman, Boyd E Trostle, Galen C [jt. aut] Mason, Richard R [jt. aut] United States. Forest Service Material type: Text; Format: print ; Literary form: Not fiction Language: English Publication details: Washington, D.C. : U. S. Dept. of Agriculture, 1980 Other title: Forest insect and disease leaflet Availability: Items available for loan: National Library of India (1)Call number: U.S 634.9670973 W 632. Place hold Request article Save to lists

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