1. A text book of dairy chemistry, theoretical and practical, for students of agriculture and dairying Creator: Ling, Edgar Roberts. Collection: Core Historical Literature of Agriculture Publisher: J. Wiley & Sons, Inc., Publication Place: New York : Date: 1930 Format: Book
2. Dairy farming: most milk and profit per acre Creator: Fraser, Wilber John, 1869-1949. Collection: Core Historical Literature of Agriculture Publisher: Chapman & Hall, Limited, Publication Place: London : Date: 1930 Format: Book