APA সাইটেশন

Beaumont, J. (2006). NorthStar: Building skills for the TOEFL IBT : Intermediate. New York: Pearson Longman.

শিকাগো স্টাইলে সাইটেশন

Beaumont, John. NorthStar: Building Skills for the TOEFL IBT : Intermediate. New York: Pearson Longman, 2006.

এমএলএ সাইটেশন

Beaumont, John. NorthStar: Building Skills for the TOEFL IBT : Intermediate. New York: Pearson Longman, 2006.