APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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