ETS. (2019). Official GRE Verbal Reasoning Practice Questions Vol.-1 (10TH.). Mc Grow Hill Education (India).
Chicagoスタイル(17版)引用形式ETS. Official GRE Verbal Reasoning Practice Questions Vol.-1. 10TH. Chennai: Mc Grow Hill Education (India), 2019.
MLA(9版)引用形式ETS. Official GRE Verbal Reasoning Practice Questions Vol.-1. 10TH. Mc Grow Hill Education (India), 2019.
警告: この引用は必ずしも正確ではありません.