Baker, A. (2006). Tree or three: An elementary pronunciation course (2nd ed.). New York: Cambridge University Press.
Chicago-tyylinen lähdeviittausBaker, Ann. Tree or Three: An Elementary Pronunciation Course. 2nd ed. New York: Cambridge University Press, 2006.
MLA-viiteBaker, Ann. Tree or Three: An Elementary Pronunciation Course. 2nd ed. New York: Cambridge University Press, 2006.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.