Παραπομπή APA

Hellerman, H. (1974). Digital computer system principles (2nd ed.). McGraw-Hill.

Παραπομπή Chicago Style

Hellerman, Herbert. Digital Computer System Principles. 2nd ed. New Delhi: McGraw-Hill, 1974.

Παραπομπή MLA

Hellerman, Herbert. Digital Computer System Principles. 2nd ed. McGraw-Hill, 1974.