Richards , R. K. (1966). Electronic digital systems. John Wiley.
Chicago Style (17th ed.) ZitazioaRichards , R. K. Electronic Digital Systems. New York: John Wiley, 1966.
MLA (9th ed.) ZitazioaRichards , R. K. Electronic Digital Systems. John Wiley, 1966.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.