9Daniel, Terry C.; Schroeder, Herbert. 1979. Scenic beauty estimation model:Predicting perceived beauty of forest landscapes. In: Elsner, G. H.; Smardon,R. C., tech. coord. Proceedings of our national landscape: A conference on applied techniques for analy
10Nyland, R.D., P.J. Craul, D.F. Behrend, H.E. Echelberger, W.J. Gabriel, R.L. Nissen, Jr., R. Uebler, and J. Zaenetske.. Logging and its effects in the northern hardwoods. Syracuse, NY: SUNY College of Environmental Science and Forestry,1976: 134.
