1. American Textile Reporter, 11 and 35; 13, 15 and 52; December 19, 1968.
2. Hilardo, C. J., Flammability Handbook (Technomic Publishing Co., Inc., Stamford, Connecticut, 1969).
3. Segall, W. M., Sources and Resources, 2, 12 (1969).
4. Mark, H. F., Atlas, S. M., and Cernia, E., Man Made Fibers Science and Technology, 3, 392 (Interscience Publishers, New York, 1968).
5. Leupold, E. O., USP, 2,959,609 (1960).