Astrom, K. J., & Wittenmark, B. (1990). Computer-controlled systems: Theory and design (2nd ed.). Prentice-Hall.
Cita Chicago (17th ed.)Astrom, Karl J., i Bjorn Wittenmark. Computer-controlled Systems: Theory and Design. 2nd ed. Englewood Cliffs, N.J: Prentice-Hall, 1990.
Cita MLA (9th ed.)Astrom, Karl J., i Bjorn Wittenmark. Computer-controlled Systems: Theory and Design. 2nd ed. Prentice-Hall, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.