Houpis, C. H. (1992). Digital contral systems: theory: Hardware, software. McGraw-Hill.
Cita Chicago (17th ed.)Houpis, Constantine H. Digital Contral Systems: Theory: Hardware, Software. New York: McGraw-Hill, 1992.
Cita MLA (9th ed.)Houpis, Constantine H. Digital Contral Systems: Theory: Hardware, Software. McGraw-Hill, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.