Lua APA (7ú heag.)
Gupta, S. (2002). Elements of control systems. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)
Gupta, Sudhir. Elements of Control Systems. Upper Saddle River, N.J. ; New Delhi: Prentice Hall, 2002.
Lua MLA (9ú heag.)
Gupta, Sudhir. Elements of Control Systems. Prentice Hall, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.