Bolton, W. (2001). Programmable logic controllers: An introduction (2. ed., reprinted.). Newnes.
Chicago Style (17th ed.) CitationBolton, William. Programmable Logic Controllers: An Introduction. 2. ed., reprinted. Oxford [u.a.]: Newnes, 2001.
MLA (9th ed.) CitationBolton, William. Programmable Logic Controllers: An Introduction. 2. ed., reprinted. Newnes, 2001.
Warning: These citations may not always be 100% accurate.