Crispin, A. J. (1997). Programmable logic controllers and their engineering applications (2nd ed.). McGraw-Hill.
Citace podle Chicago (17th ed.)Crispin, Alan J. Programmable Logic Controllers and Their Engineering Applications. 2nd ed. London: McGraw-Hill, 1997.
Citace podle MLA (8th ed.)Crispin, Alan J. Programmable Logic Controllers and Their Engineering Applications. 2nd ed. McGraw-Hill, 1997.
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