APA-viite (7. p.)

Duffy, T. (1992). Computing concepts (2nd ed.). Wadsworth.

Chicago-viite (17. p.)

Duffy, Tim. Computing Concepts. 2nd ed. Belmont, Calif: Wadsworth, 1992.

MLA-viite (9. p.)

Duffy, Tim. Computing Concepts. 2nd ed. Wadsworth, 1992.