APA (7 ম সংস্করণ) উদ্ধৃতি

Educational Testing Service. (2021). Official guide to the toefl ibt test, sixth edition (Sixth edition.). McGraw Hill.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Educational Testing Service. Official Guide to the Toefl Ibt Test, Sixth Edition. Sixth edition. New York: McGraw Hill, 2021.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Educational Testing Service. Official Guide to the Toefl Ibt Test, Sixth Edition. Sixth edition. McGraw Hill, 2021.