Cita APA (7a ed.)

Buchan, J. (1997). The thirty nine steps, simplified edition. Addison Wesley Longman.

Cita Chicago Style (17a ed.)

Buchan, John. The Thirty Nine Steps, Simplified Edition. Harlow: Addison Wesley Longman, 1997.

Cita MLA (8a ed.)

Buchan, John. The Thirty Nine Steps, Simplified Edition. Addison Wesley Longman, 1997.