APA (7th ed.) Citation

Buchan, J. (1955). The Thirty- Nine Steps. Pan Books.

Chicago Style (17th ed.) Citation

Buchan, John. The Thirty- Nine Steps. London: Pan Books, 1955.

MLA (9th ed.) Citation

Buchan, John. The Thirty- Nine Steps. Pan Books, 1955.

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