@article {4153, title = {Final Contract Report for Regional Chief Scientist, Southeast Regional Office, National Park Service On Stem Morphology and Physiology of Fraser Fir in Relation to Balsam Wolly Aphid}, year = {1981}, month = {April}, institution = {University of Tennessee}, address = {Knoxville, TN}, keywords = {Fraser fir, Insects, Trees -- Decay, Trees -- Growth, Woolly adelgids}, author = {Hay, Ronald L and Eagar, Christopher C} }