Mendelssohn, B. (1958). Correct your english. Longmans Green.
Cita Chicago (17th ed.)Mendelssohn, B. Correct Your English. London: Longmans Green, 1958.
Cita MLA (9th ed.)Mendelssohn, B. Correct Your English. Longmans Green, 1958.
Atenció: Aquestes cites poden no estar 100% correctes.