APA-viite (7. p.)

Educational Testing Service. (2015). The Official Guide to the GRE revised General Test (2nd ed.). McGraw Hill Education (India) Pvt. Ltd.

Chicago-viite (17. p.)

Educational Testing Service. The Official Guide to the GRE Revised General Test. 2nd ed. New Delhi: McGraw Hill Education (India) Pvt. Ltd, 2015.

MLA-viite (9. p.)

Educational Testing Service. The Official Guide to the GRE Revised General Test. 2nd ed. McGraw Hill Education (India) Pvt. Ltd, 2015.