Cita APA (7a ed.)

Marckwardt, A. H., & Quirk, R. (1964). A common language: British and American English. The British broadcasting corporation [etc.].

Cita Chicago Style (17a ed.)

Marckwardt, Albert Henry, y Randolph Quirk. A Common Language: British and American English. London: The British broadcasting corporation [etc.], 1964.

Cita MLA (9a ed.)

Marckwardt, Albert Henry, y Randolph Quirk. A Common Language: British and American English. The British broadcasting corporation [etc.], 1964.