PT - JOURNAL ARTICLE AU - James F. Guymon TI - Professional Training AID - 10.5344/ajev.1959.10.1.33 DP - 1959 Jan 01 TA - American Journal of Enology and Viticulture PG - 33--34 VI - 10 IP - 1 4099 - http://www.ajevonline.org/content/10/1/33.short 4100 - http://www.ajevonline.org/content/10/1/33.full SO - Am J Enol Vitic.1959 Jan 01; 10