Cita APA (7a ed.)

(2007). The Official guide to the new TOEFL IBT (2nd ed.). McGraw-Hill.

Cita Chicago Style (17a ed.)

The Official Guide to the New TOEFL IBT. 2nd ed. Nova York: McGraw-Hill, 2007.

Cita MLA (9a ed.)

The Official Guide to the New TOEFL IBT. 2nd ed. McGraw-Hill, 2007.