Cita APA (7th ed.)

Baker, A. (2006). Ship or sheep?: An intermediate pronunciation course (3rd ed.). Cambridge University Press.

Cita Chicago (17th ed.)

Baker, Ann. Ship or Sheep?: An Intermediate Pronunciation Course. 3rd ed. Cambridge ; New York: Cambridge University Press, 2006.

Cita MLA (9th ed.)

Baker, Ann. Ship or Sheep?: An Intermediate Pronunciation Course. 3rd ed. Cambridge University Press, 2006.