Literature Cited
- American Society of Brewing Chemists. Methods of Analysis (6th ed.). The Society: Glenview, Illinois (1958).
- Bettner, R. E., and Meredith, W. O. S. Am. Soc. Brewing Chemists, Proc. 1969, p. 70.
- Bettner, R. E., Meredith, W.O.S., and Anderson, J. A. Am. Soc. Brewing Chemists, Proc. 1963, p. 5.