Sage, A. P. (1977). Optimum systems control (2nd ed.). Prentice-Hall of India.
Chicago Edition CitationSage, Andrew P. Optimum Systems Control. 2nd ed. New Jersey: Prentice-Hall of India, 1977.
Cita MLASage, Andrew P. Optimum Systems Control. 2nd ed. Prentice-Hall of India, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.