1. American Society for Testing and Materials, Part 27, Philadelphia, Pa. (1968).
2. American Society for Testing and Materials, Part 26, Philadelphia, Pa. (1969).
3. By-product markets await desalters;Anonymous;Chem. Eng. News,1970
4. Forecast for polyurethanes calls for more big growth;Anonymous;Chem. Eng. News,,1971
5. Rigid urethane foam extended with starch;Bennet;J. Cellular Plastics,1967