Pacific Northwest Forest and Range Experiment Station (Portland, Or.), Cowlin, R. W., & Moravets, F. L. (1940). Forest resources of Washington. Division of Forestry, Dept. of Conservation and Development, State of Washington.
Cita Chicago Style (17a ed.)Pacific Northwest Forest and Range Experiment Station (Portland, Or.), Robert W. Cowlin, y F. L. Moravets. Forest Resources of Washington. Olympia: Division of Forestry, Dept. of Conservation and Development, State of Washington, 1940.
Cita MLA (8a ed.)Pacific Northwest Forest and Range Experiment Station (Portland, Or.), et al. Forest Resources of Washington. Division of Forestry, Dept. of Conservation and Development, State of Washington, 1940.
Precaución: Estas citas no son 100% exactas.