Cita APA (7a ed.)

Marckwardt, A. (1964). A common language: British and American english. British Broadcasting.

Cita Chicago Style (17a ed.)

Marckwardt, Albert. A Common Language: British and American English. Londres, Inglaterra: British Broadcasting, 1964.

Cita MLA (9a ed.)

Marckwardt, Albert. A Common Language: British and American English. British Broadcasting, 1964.