Cita APA (7a ed.)

Trask,R.L. (2001). Penguin Guide To Common Errors In English (NA.). Penguin Books.

Cita Chicago Style (17a ed.)

Trask,R.L. Penguin Guide To Common Errors In English. NA. New Delhi: Penguin Books, 2001.

Cita MLA (9a ed.)

Trask,R.L. Penguin Guide To Common Errors In English. NA. Penguin Books, 2001.