APA (7th ed.) Zitazioa

Dixson, R. J. (1972). Tests and drills in english grammar. Regents.

Chicago Style (17th ed.) Zitazioa

Dixson, Robert J. Tests and Drills in English Grammar. Nueva York: Regents, 1972.

MLA (9th ed.) Zitazioa

Dixson, Robert J. Tests and Drills in English Grammar. Regents, 1972.