Cita APA

Hornby, A. S. (1990). Oxford advanced learner`s dictionary of current english (4 Edition.).

Citación estilo Chicago

Hornby, A S. Oxford Advanced Learner`s Dictionary of Current English. 4 Edition. Oxford university press, New Delhi, 1990.

Cita MLA

Hornby, A S. Oxford Advanced Learner`s Dictionary of Current English. 4 Edition. 1990.