Title: Modern Refrigeration and Air Conditioning, Author: Andrew D. Althouse
Title: Agricultural Mechanics and Technology Systems, Author: J. P. Hancock
Title: Introductory Horticulture, Author: Carroll Shry
Title: Farming and the Food Supply, Author: Debra A. Miller
Title: The Domestication and Exploitation of Plants and Animals, Author: G. W. Dimbleby