Dyfyniad APA

Crispin, A. J. (1997). Programmable logic controllers and their engineering applications (2nd ed.). McGraw-Hill.

Dyfyniad Arddull Chicago

Crispin, Alan J. Programmable Logic Controllers and Their Engineering Applications. 2nd ed. London: McGraw-Hill, 1997.

Dyfyniad MLA

Crispin, Alan J. Programmable Logic Controllers and Their Engineering Applications. 2nd ed. McGraw-Hill, 1997.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.