Cita APA (7th ed.)

Dixson, R. (1950). Practical guide. Regents.

Cita Chicago (17th ed.)

Dixson, Robert. Practical Guide. New York: Regents, 1950.

Cita MLA (9th ed.)

Dixson, Robert. Practical Guide. Regents, 1950.

Atenció: Aquestes cites poden no estar 100% correctes.