APA (7th ed.) Citation

Johns, W. E. (2012). Biggles adventure double. Doubleday.

Chicago Style (17th ed.) Citation

Johns, William E. Biggles Adventure Double. London: Doubleday, 2012.

MLA (9th ed.) Citation

Johns, William E. Biggles Adventure Double. Doubleday, 2012.

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