APA (7th ed.) Citation

Buchan, J. (1959). The thirty-nine steps (New ed. (re-set).). Pan Books.

Chicago Style (17th ed.) Citation

Buchan, John. The Thirty-nine Steps. New ed. (re-set). London: Pan Books, 1959.

MLA (9th ed.) Citation

Buchan, John. The Thirty-nine Steps. New ed. (re-set). Pan Books, 1959.