1. Chemical factors affecting selection of food plants by ruminants;Arnold,1972
2. Effects of nutritional experience in early and adult life on the performance and dietary habits of sheep;Arnold;Appl. Anim. Ethol.,1977
3. Bowns, J. E. (1973). An autecological study of blackbrush (Coleogyne ramosissima Torr.) in southwestern Utah. Ph. D. Dissertation, Utah State University, Logan.
4. Instructions for Grazing Reconnaissance on National Forests;Chapline,1923
5. The use and misuse of shrubs and trees as fodder in the United States;Chapline,1947