APA (7th ed.) Citation

Buchan, J. (1953). The three hostages. Penguin Books.

Chicago Style (17th ed.) Citation

Buchan, John. The Three Hostages. [Harmondsworth, Middlesex, Eng.]: Penguin Books, 1953.

MLA (9th ed.) Citation

Buchan, John. The Three Hostages. Penguin Books, 1953.

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