1. Aldridge, V. R., Jacoby, P. W., Jr., Steger, R. E. & Hartman, F. S. (1983). Short-term responses of pricklypear (Opuntia lindheimeri) to foliar- and soil-applied picloram in the southern rolling plains. Texas Agricultural Experiment Station, Progress Report, 4127: 8 pp.
2. Seasonal food habits of white-tailed deer in the south Texas plains;Arnold;Journal of Range Management,1979
3. Water analysis by atomic absorption and flame emission spectroscopy. In: Baker, R. A. (Ed.), Trace Inorganic in Water;Boettner;Advance in Chemical Series, American Chemistry Society,1968
4. Rapid digestion method for determination of phosphorus;Bolin;Industrial and Engineering Chemical Analytical Edition,1944
5. Dameron, W. H. & Smith, H. P. (1939). Pricklypear eradication and control. Texas Agricultural Experiment Station Bulletin, 575: 55 pp.