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2. Development of a new piosphere in arid chenopod shrubland grazed by sheep: 1. Changes to the soil surface;Andrew;Australian Journal of Ecology,1986
3. Development of a new piosphere in arid chenopod shrubland grazed by sheep: 2. Changes to the vegetation;Andrew;Australian Journal of Ecology,1986
4. The Desert Tortoise Recovery Plan: an ambitious effort to conserve biodiversity in the Mojave and Colorado deserts of the United States;Berry,1997
5. Birnie, Jr. R., 1876. Appendix D. Executive report of Lieutenant R. Birnie, Jr., Thirteenth United States Infantry on the Operations of Party No. 2, California Section, Field Season of 1875, in: Wheeler, Lt. G. M., Annual Report Upon the Geographic Surveys West of the One Hundredth Meridian, in California, Nevada, Utah, Colorado, Wyoming, New Mexico, Arizona, and Montana. Appendix JJ of the Annual Report of the Chief of Engineers for 1876. Government Printing Office, Washington D.C., pp. 251–355.