Cita APA (7a ed.)

Richards, R. K. (1966). Electronic digital systems (2nd print. ed.). McGraw-Hill.

Cita Chicago Style (17a ed.)

Richards, R. K. Electronic Digital Systems. 2nd print. ed. Nueva York: McGraw-Hill, 1966.

Cita MLA (9a ed.)

Richards, R. K. Electronic Digital Systems. 2nd print. ed. McGraw-Hill, 1966.