Cita APA (7th ed.)

Baker, A., & Goldstein, S. (1990). Pronunciation pairs: Teacher's manual. Cambridge University.

Cita Chicago (17th ed.)

Baker, Ann, i Sharon Goldstein. Pronunciation Pairs: Teacher's Manual. Nueva York: Cambridge University, 1990.

Cita MLA (9th ed.)

Baker, Ann, i Sharon Goldstein. Pronunciation Pairs: Teacher's Manual. Cambridge University, 1990.