Cita APA (7a ed.)

Aveyard, P., & West, R. (2007). Authors' reply to letter [6].

Cita Chicago Style (17a ed.)

Aveyard, P., y R. West. Authors' Reply to Letter [6]. 2007.

Cita MLA (9a ed.)

Aveyard, P., y R. West. Authors' Reply to Letter [6]. 2007.