RT Journal Article SR Electronic T1 Acidification of Grapes from Region IV JF American Journal of Enology and Viticulture JO Am J Enol Vitic. FD American Society for Enology and Viticulture SP 254 OP 256 DO 10.5344/ajev.1969.20.4.254 VO 20 IS 4 A1 M. A. Amerine A1 C. S. Ough YR 1969 UL http://www.ajevonline.org/content/20/4/254.abstract AB