APA (7th ed.) Citation

Educational Testing Service. (2007). The official guide to the new TOEFL iBT (Second edition.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Educational Testing Service. The Official Guide to the New TOEFL IBT. Second edition. New York: McGraw-Hill, 2007.

MLA (8th ed.) Citation

Educational Testing Service. The Official Guide to the New TOEFL IBT. Second edition. McGraw-Hill, 2007.