Educational Testing Service. (2015). The Official Guide to the GRE revised General Test (2nd ed.). McGraw Hill Education (India) Pvt. Ltd.
Chicago-Zitierstil (17. Ausg.)Educational Testing Service. The Official Guide to the GRE Revised General Test. 2nd ed. New Delhi: McGraw Hill Education (India) Pvt. Ltd, 2015.
MLA-Zitierstil (9. Ausg.)Educational Testing Service. The Official Guide to the GRE Revised General Test. 2nd ed. McGraw Hill Education (India) Pvt. Ltd, 2015.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.