RT Journal Article SR Electronic T1 Colorimetric Determination of Iron (Modified Marsh-Nobusada Method) JF American Journal of Enology and Viticulture JO Am J Enol Vitic. FD American Society for Enology and Viticulture SP 46 OP 47 DO 10.5344/ajev.1954.5.1.46 VO 5 IS 1 A1 Holden, Charles B. YR 1954 UL http://www.ajevonline.org/content/5/1/46.abstract AB