Lua APA (7ú heag.)

Hughes, T. A. (2001). Programmable controllers (3rd ed.). Instrumentation, Systems, and Automation Society.

Lua i Stíl Chicago (17ú heag.)

Hughes, Thomas A. Programmable Controllers. 3rd ed. Research Triangle Park, NC: Instrumentation, Systems, and Automation Society, 2001.

Lua MLA (8ú heag.)

Hughes, Thomas A. Programmable Controllers. 3rd ed. Instrumentation, Systems, and Automation Society, 2001.

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