Malvino, A. P., & Leach, D. P. (1986). Digital principles and applications (4th ed.). McGraw-Hill.

Malvino, Albert Paul, and Donald P. Leach. Digital Principles and Applications. 4th ed. New York: McGraw-Hill, 1986.

Malvino, Albert Paul, and Donald P. Leach. Digital Principles and Applications. 4th ed. McGraw-Hill, 1986.