1. Diseases of fruits and hops Creator: Wormald, Hugh. Collection: Core Historical Literature of Agriculture Publisher: Crosby Lockwood & Son Ltd., Publication Place: London : Date: 1939 Format: Book
2. Outline of diseases of cereal and forage crop plants of the northern part of the United States Creator: Dickson, James G. b. 1891. Collection: Core Historical Literature of Agriculture Publisher: Burgess Pub. Co., Publication Place: Minneapolis, Minn. : Date: 1939 Format: Book