1. Man's Role in Changing the Face of the Earth,1956
2. Early relation of man to plants;Sauer;The Geographical Review,1947
3. Grazing impacts on the sagebrush communities of southern Utah;Brotherson;Great Basin Naturalist,1981
4. Is Utah Sahara Bound?;Cottam;Bulletin of the University of Utah,1947
5. Man's ecological dominance through domesticated animals on wild lands;Darling,1956