Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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