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1. Programmable controllers by Parr, E. A. Publication: Amsterdam ; | Boston : Newnes, 2003 . 1 online resource (xii, 429 p.) : , Includes index. Date:2003 Availability: No items available: Actions: Add to cart
2. Hydraulics and pneumatics by Parr, E. A. Publication: Oxford ; | Boston : Butterworth-Heinemann, 2000 . 1 online resource (viii, 244 p.) : Date:2000 Availability: No items available: Actions: Add to cart