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MLA

Johnson, Aaron G. (Aaron Guy), and James G. (James Geere) Dickson. "Wheat Scab and Its Control." , p.. Print

APA

Johnson, A. G. (Aaron Guy), & Dickson, J. G. (James Geere). (1921). Wheat scab and its control.

Chicago

Johnson, Aaron G. (Aaron Guy), and James G. (James Geere) Dickson. "Wheat scab and its control" (1921): p..