APA সাইটেশন

May, P. (1999). Knockout first certificate: Student's book (5th ed.). Oxford: Oxford University Press.

শিকাগো স্টাইলে সাইটেশন

May, Peter. Knockout First Certificate: Student's Book. 5th ed. Oxford: Oxford University Press, 1999.

এমএলএ সাইটেশন

May, Peter. Knockout First Certificate: Student's Book. 5th ed. Oxford: Oxford University Press, 1999.