Cita APA (7a ed.)

O'Grady William, Dobrovolsky Michael, & Katamba Francis. (1997). Contemporary linguistic: An introduction. Pearson education ltd..

Cita Chicago Style (17a ed.)

O'Grady William, Dobrovolsky Michael, y Katamba Francis. Contemporary Linguistic: An Introduction. Harlow: Pearson education ltd., 1997.

Cita MLA (9a ed.)

O'Grady William, et al. Contemporary Linguistic: An Introduction. Pearson education ltd., 1997.