APA (7th ed.) Citation

Hellerman, H. (1973). Digital computer system principles (2d ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Hellerman, Herbert. Digital Computer System Principles. 2d ed. New York: McGraw-Hill, 1973.

MLA (8th ed.) Citation

Hellerman, Herbert. Digital Computer System Principles. 2d ed. McGraw-Hill, 1973.