@article {7175, title = {Preliminary Report No. 4: Balsam Woolly Aphid Detection Survey}, year = {1963}, month = {August 23}, institution = {U.S. Forest Service}, address = {Atlanta, GA}, keywords = {Conservation -- Surveying, Spruce-Fir forests, Woolly adelgids}, issn = {No. 63-64}, url = {http://diglib.lib.utk.edu/dotsdata/Flora_PreliminaryReportNo4BalsamWoollyAphidDetectionSurvey_1963.pdf}, author = {Flora, R. L and Buchanan, Astin and Buchanan, W. D} }