Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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