Cita APA (7a ed.)

Mortimer, C., & Gan, D. (1977). Weak forms: A Pronunciaton practice book. Cambridge University Press.

Cita Chicago Style (17a ed.)

Mortimer, Colin, y Daria Gan. Weak Forms: A Pronunciaton Practice Book. Cambridge: Cambridge University Press, 1977.

Cita MLA (9a ed.)

Mortimer, Colin, y Daria Gan. Weak Forms: A Pronunciaton Practice Book. Cambridge University Press, 1977.