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Letter to the Editor

Race Dynamics of Puccinia graminis f. sp. tritici in the USA from 1973 to 1980. S. Nagarajan, Indian Agricultural Research Institute, Regional Station, Flowerdale, Simla 171002, India; Phytopathology 73:512. Accepted for publication 15 November 1982. Copyright 1983 The American Phytopathological Society. DOI: 10.1094/Phyto-73-512.