Ku, T. T., J. M. Sweeney, and V. B. Shelburne. 1981b. Hazard rating of stands for southern pine beetle attack in Arkansas. Pages 145-148 in R. L. Hedden, S. J. Barras, and J. E. Coster, Hazardrating systems in forest insect pest management. United States Department of Agriculture, Forest Service, General Technical Report WO-27. 169 p.