(2017). GRE prep plus 2018: Practice tests + proven strategies + online + video + mobile. New York: Kaplan Publishing.
シカゴスタイル引用形GRE Prep Plus 2018: Practice Tests + Proven Strategies + Online + Video + Mobile. New York: Kaplan Publishing, 2017.
MLA引用形式GRE Prep Plus 2018: Practice Tests + Proven Strategies + Online + Video + Mobile. New York: Kaplan Publishing, 2017.
警告: この引用は必ずしも正確ではありません.