APA (7th ed.) Zitazioa

Gallagher, N. Delta's next generation toefel test. Delta publishing company.

Chicago Style (17th ed.) Zitazioa

Gallagher, Nancy. Delta's Next Generation Toefel Test. New York: Delta publishing company.

MLA (9th ed.) Zitazioa

Gallagher, Nancy. Delta's Next Generation Toefel Test. Delta publishing company.