Cita APA (7th ed.)

Baker, A. (1982). Introducing English pronunciation: A teacher's guide to tree or three? and ship or sheep? (1a. ed.). Cambridge University Press.

Cita Chicago (17th ed.)

Baker, Ann. Introducing English Pronunciation: A Teacher's Guide to Tree or Three? and Ship or Sheep? 1a. ed. Cambridge: Cambridge University Press, 1982.

Cita MLA (9th ed.)

Baker, Ann. Introducing English Pronunciation: A Teacher's Guide to Tree or Three? and Ship or Sheep? 1a. ed. Cambridge University Press, 1982.