APA-viite (7. p.)

Bullough, D. (1965). The age of Charlemagne. G.P. Putnam's Sons.

Chicago-viite (17. p.)

Bullough, Donald. The Age of Charlemagne. New York: G.P. Putnam's Sons, 1965.

MLA-viite (9. p.)

Bullough, Donald. The Age of Charlemagne. G.P. Putnam's Sons, 1965.