Lua APA (7ú heag.)
Nagrath, I. J., & Gopal, M. (2002). Control systems engineering (3rd ed.). New Age International.
Lua i Stíl Chicago (17ú heag.)
Nagrath, I. J., agus M. Gopal. Control Systems Engineering. 3rd ed. Calcutta: New Age International, 2002.
Lua MLA (9ú heag.)
Nagrath, I. J., agus M. Gopal. Control Systems Engineering. 3rd ed. New Age International, 2002.
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