APA (7th ed.) Citation

Johns, W. (1937). Biggles and the Secret Mission. Random House Children Books.

Chicago Style (17th ed.) Citation

Johns, W.E. Biggles and the Secret Mission. London: Random House Children Books, 1937.

MLA (9th ed.) Citation

Johns, W.E. Biggles and the Secret Mission. Random House Children Books, 1937.

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