1. Am. Assoc. Textile Chemists Colorists, "Year Book of the A.A.T.C.C," Vol. 26, 1950, pp. 84-5.
2. Am. Assoc. Textile Chemists Colorists; "Year Book of the A.A.T.C.C," Vol. 26, 1950, pp. 118-19.
3. Am. Soc. Testing Materials, "A.S.T.M. Standards ," Philadelphia, 1951, pp. 123-5 (D684-45T).
4. Am.Soc. Testing Materials, "A.S.T.M. Standards ," Philadelphia, 1951, pp. 140-2 (D39-49) ; pp. 157-60 (D1175-51T).