1. BARGER, J.H. (1976) Dutch elm disease and methoxychlor.USDA, Forest Service Research Paper, NorthEastern Forest Experiment Station, NE-353, p. 5.
2. CANNON, N.W., BARGER, J.H. & WORLEY, D.P. (1977) Dutch elm disease control: Intensive sanitation and survey economies.Forest Service Research PaperNE-387. NEPES, Upper Darby.
3. Dutch Elm disease Control and the Elm Bark Borer