%0 Journal Article %A M. A. Amerine %A C. S. Ough %T Acidification of Grapes from Region IV %D 1969 %R 10.5344/ajev.1969.20.4.254 %J American Journal of Enology and Viticulture %P 254-256 %V 20 %N 4 %U https://www.ajevonline.org/content/ajev/20/4/254.full.pdf