Ringgold, G. B., & Intermountain Forest and Range Experiment Station. (1975). Characteristics of Douglas-fir beetle infestation in northern Idaho resulting from treatment with Douglure. Intermountain Forest and Range Experiment Station.
Chicago Style (17th ed.) CitationRinggold, G. B., and Intermountain Forest and Range Experiment Station. Characteristics of Douglas-fir Beetle Infestation in Northern Idaho Resulting from Treatment with Douglure. Intermountain Forest and Range Experiment Station, 1975.
MLA (8th ed.) CitationRinggold, G. B., and Intermountain Forest and Range Experiment Station. Characteristics of Douglas-fir Beetle Infestation in Northern Idaho Resulting from Treatment with Douglure. Intermountain Forest and Range Experiment Station, 1975.
Warning: These citations may not always be 100% accurate.