Baker, E. (1972). Contemporay English. Issac Pitman & Sons.
Cita Chicago (17th ed.)Baker, Edgar. Contemporay English. London: Issac Pitman & Sons, 1972.
Cita MLA (9th ed.)Baker, Edgar. Contemporay English. Issac Pitman & Sons, 1972.
Atenció: Aquestes cites poden no estar 100% correctes.