Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (9ú heag.)

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

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.