Truxal, J. G. (1989). Feedback-Automation. Research foundation of State University of New York.
Cita Chicago (17th ed.)Truxal, John G. Feedback-Automation. Stony Brook: Research foundation of State University of New York, 1989.
Cita MLA (9th ed.)Truxal, John G. Feedback-Automation. Research foundation of State University of New York, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.