1. paper presented at the Symposium on Biotechnology in Energy Production and Conservation, Gatlinburg, TN, May 10-12, 1978.
2. “Improved Anaerobic Digester Performance with Powdered Activated Carbon,” ICI United States, Inc., 1977, Rep. no. 903-4.
3. Effect of Temperature and Retention Time on Methane Production from Beef Cattle Waste