Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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