@book{ Solr-ocm02360436, title = {Attainment of the overwintering instar and the casebearing habit by larch casebearer larvae at different elevations in the Blue Mountains}, series = {USDA Forest Service research note PNW}, author = {Ryan, Roger B.}, editor = {Pacific Northwest Forest and Range Experiment Station (Portland, Or.)}, publisher = {Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture}, year = {1974}, pages = {6}, }