@book{ Solr-ocm49850620, title = {Silvical characteristics of Douglas-fir (var. menziesii)}, series = {Silvical series / Pacific Northwest Forest and Range Experiment Station}, series = {Silvical series (Pacific Northwest Forest and Range Experiment Station (Portland, Or.))}, author = {Isaac, Leo A. (Leo Anthony), 1892-1970}, editor = {Dimock, Edward J.}, editor = {Pacific Northwest Forest and Range Experiment Station (Portland, Or.)}, publisher = {Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service}, year = {1958}, pages = {18}, }