Literature Cited
- AMERICAN SOCIETY OF BREWING CHEMISTS. Methods of Analysis (6th ed.). Hops 3-I. The Society: St. Paul, Minn. (1958).
- AMERICAN SOCIETY OF BREWING CHEMISTS. Methods of Analysis (6th ed.). Hops 5. The Society: St. Paul, Minn. (1958).
- AMERICAN SOCIETY OF BREWING CHEMISTS. Report of the Subcommittee on Evaluation of Hop Extracts. Proc. 1970, p. 230.