Ingels

What Every Engineer Should Know: What Every Engineer Should Know about Computer Modeling and Simulation Vol 15 by Ingels CRC Press Hardcover 2 October 1985 from£41.12 | RRP: ~~£49.99~~
Ornamental Horticulture: Science, Operations, and Management by Jack E. Ingels Delmar Cengage Learning Hardcover 19 January 2001 from£67.28 | RRP: ~~£60.99~~