Cita APA (7th ed.)
Strunk, W. (1959). The elements of style. Macmillan.
Cita Chicago (17th ed.)
Strunk, William. The Elements of Style. New York: Macmillan, 1959.
Cita MLA (9th ed.)
Strunk, William. The Elements of Style. Macmillan, 1959.
Atenció: Aquestes cites poden no estar 100% correctes.