Cita APA (7a ed.)

Gerritsen, T., & Barber, N. (2011). In their footsteps. Brilliance Audio.

Cita Chicago Style (17a ed.)

Gerritsen, Tess, y Nicola Barber. In Their Footsteps. Grand Haven, Mich.: Brilliance Audio, 2011.

Cita MLA (8a ed.)

Gerritsen, Tess, y Nicola Barber. In Their Footsteps. Brilliance Audio, 2011.

Precaución: Estas citas no son 100% exactas.