1. Cocoa and chocolate: their chemistry and manufacture Creator: Whymper, R. b. 1885. Collection: Core Historical Literature of Agriculture Publisher: J. & A. Churchill, Publication Place: London : Date: 1912 Format: Book
2. Cocoa Creator: Hall, Constant Johan Jacob van, 1875- Collection: Core Historical Literature of Agriculture Publisher: Macmillan & co., ltd, Publication Place: London : Date: 1914 Format: Book
3. Modern methods of cocoa and chocolate manufacture Creator: Bywaters, Hubert William. Collection: Core Historical Literature of Agriculture Publisher: P. Blakiston's Son & Co., Inc., Publication Place: Philadelphia : Date: 1930 Format: Book