KUO, B. C. (1991). Automatic control systems.-- Ed.6. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)KUO, Benjamin C. Automatic Control Systems.-- Ed.6. Englewood Cliffs: Prentice-Hall, 1991.
Lua MLA (9ú heag.)KUO, Benjamin C. Automatic Control Systems.-- Ed.6. Prentice-Hall, 1991.
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