Cita APA (7th ed.)

Kannik, P. (1959). The flag book ([3rd ed.].). Barrows.

Cita Chicago (17th ed.)

Kannik, Preben. The Flag Book. [3rd ed.]. New York: Barrows, 1959.

Cita MLA (9th ed.)

Kannik, Preben. The Flag Book. [3rd ed.]. Barrows, 1959.