APA (7th ed.) Citation

(1973). Spot the mistakes: British soldier's Armalite. [s.n.].

Chicago Style (17th ed.) Citation

Spot the Mistakes: British Soldier's Armalite. [S.l.]: [s.n.], 1973.

MLA (8th ed.) Citation

Spot the Mistakes: British Soldier's Armalite. [s.n.], 1973.