%0 Journal Article %A James F. Guymon %T Professional Training %D 1959 %R 10.5344/ajev.1959.10.1.33 %J American Journal of Enology and Viticulture %P 33-34 %V 10 %N 1 %U https://www.ajevonline.org/content/ajev/10/1/33.full.pdf