APA (7th ed.) Citation

MacClure, V. (1924). Ultimatum: A romance of the air. Harrap.

Chicago Style (17th ed.) Citation

MacClure, Victor. Ultimatum: A Romance of the Air. London: Harrap, 1924.

MLA (8th ed.) Citation

MacClure, Victor. Ultimatum: A Romance of the Air. Harrap, 1924.

Warning: These citations may not always be 100% accurate.