Walsh, R. G., G. Keleta, and J. P. Olienyk. 1981. Value of trees to residential property owners with mountain pine beetle and spruce budworm damage in the Colorado Front Range. United States Department of Agriculture, Forest Service, Rocky Mountain Region, State and Private Forestry, Contract No. 53-82X9-9-180. 115 p.
Walsh et al. 1981
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