Cita APA (7th ed.)

TOCCI, R. J., & WIDMER, N. S. (1998). Digital systems: Principles and applications.-- ed.7. Prentice Hall.

Cita Chicago (17th ed.)

TOCCI, Ronald J., i Neal S. WIDMER. Digital Systems: Principles and Applications.-- Ed.7. London: Prentice Hall, 1998.

Cita MLA (9th ed.)

TOCCI, Ronald J., i Neal S. WIDMER. Digital Systems: Principles and Applications.-- Ed.7. Prentice Hall, 1998.