Cita APA (7a ed.)

Stott, T., & Buckingham, A. (2009). At your Service StudyBook. Oxford University.

Cita Chicago Style (17a ed.)

Stott, Trish, y Angela Buckingham. At Your Service StudyBook. Reino Unido: Oxford University, 2009.

Cita MLA (8a ed.)

Stott, Trish, y Angela Buckingham. At Your Service StudyBook. Oxford University, 2009.