1. Baker AA, Dane CH, Reeside JB Jr (1947) Revised correlation of Jurassic formations of parts of Utah, Arizona, New Mexico, and Colorado: geological notes. American Association of Petroleum Geologists Bulletin 31(9):1664–1668
2. Berkowitz JF (2011a) Regionalizing the Corps of Engineers wetland delineation manual: process overview and status report. National Wetland Newsletter 33:24–28
3. Berkowitz JF (2011b) Recent advances in wetland delineation - implications and impact of regionalization. Wetlands 39(3):593–601
4. Berkowitz JF, Sallee JB (2011) Investigating problematic hydric soils using water table measurements, IRIS tubes, soil chemistry, and application of the hydric soils technical standard. Soil Science Society of America Journal 75(6):2379–2385
5. Bigham JM, Ciolkosz EJ, Blodgett RH, Crabaugh JP, McBride EF (1993) The color of red beds: a geologic perspective. p. 127–159. In Soil color. Soil science Society of America Special Publication no. 31. Soil Science Society of America Press. Madison, WI