APA (7. basım) Alıntı

TREGIDGO, P. Practical English usage for overseas: Students (2nd ed.). Longman.

Chicago Style (17. basım) Atıf

TREGIDGO, P.S. Practical English Usage for Overseas: Students. 2nd ed. London: Longman.

MLA (9th ed.) Atıf

TREGIDGO, P.S. Practical English Usage for Overseas: Students. 2nd ed. Longman.