Lua APA (7ú heag.)

Hackworth,J R. (2004). Programmable Logic Controller: Programming Methods and Applications(with CD). Pearson Education.

Lua i Stíl Chicago (17ú heag.)

Hackworth,J R. Programmable Logic Controller: Programming Methods and Applications(with CD). New Delhi: Pearson Education, 2004.

Lua MLA (9ú heag.)

Hackworth,J R. Programmable Logic Controller: Programming Methods and Applications(with CD). Pearson Education, 2004.

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