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1
Red rot in residual ponderosa pine stands on the Navajo Indian Reservation /
by Lightle, Paul C. (Paul Charles), 1918-
Fort Collins, Colo. : Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1968

Government Document Book
2
Control of dwarf mistletoe in a heavily used ponderosa pine recreation forest : Grand Canyon, Arizona /
by Lightle, Paul C. (Paul Charles), 1918-
Fort Collins, Colo. : Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1973

Government Document Book
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