Parr, E. A. Programmable controllers: An engineer's guide (3rd ed.).
Chicago Style (17th ed.) CitationParr, E. A. Programmable Controllers: An Engineer's Guide. 3rd ed.
MLA (8th ed.) CitationParr, E. A. Programmable Controllers: An Engineer's Guide. 3rd ed.
Warning: These citations may not always be 100% accurate.