Style de citation APA (7e éd.)

Educational Testing Service. (2007). The official guide to the new toefl ibt. McGraw-Hill.

Style de citation Chicago (17e éd.)

Educational Testing Service. The Official Guide to the New Toefl Ibt. New York: McGraw-Hill, 2007.

Style de citation MLA (9e éd.)

Educational Testing Service. The Official Guide to the New Toefl Ibt. McGraw-Hill, 2007.