Title
Population density of western spruce budworm as related to stand characteristics in the Bitterroot National Forest / Carroll B. Williams, Jr., Patrick J. Shea, Gerald S. Walton.
Published
Berkeley, Calif. : Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1971.
Other formats
Online version: Williams, Carroll B. Population density of western spruce budworm as related to stand characteristics in the Bitterroot National Forest. Berkeley, Calif. : Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1971