Cita APA

Ilson, R., & Whitcut, J. (1994). Mastering english usage. New York: Prentice Hall.

Chicago Style Citation

Ilson, Robert, i Janet Whitcut. Mastering English Usage. New York: Prentice Hall, 1994.

Cita MLA

Ilson, Robert, i Janet Whitcut. Mastering English Usage. New York: Prentice Hall, 1994.

Atenció: Aquestes cites poden no estar 100% correctes.