Browse University of Illinois Extension by Author "Fahrnkopf, H. F. T. (Harrison Frederick Theodore), 1888-"

  • Hopkins, Cyril G. (Cyril George), 1866-1919.; Whitchurch, J. E. (John Exra), 1866-; Fahrnkopf, H. F. T. (Harrison Frederick Theodore), 1888- (Urbana, Ill. : University of Illinois Agricultural Experiment Station,, 1917)

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