APA引文

(2018). GRE prep plus 2019. Kaplan Publishing.

芝加哥风格引文

GRE Prep Plus 2019. New York: Kaplan Publishing, 2018.

MLA引文

GRE Prep Plus 2019. Kaplan Publishing, 2018.

警告：这些引文格式不一定是100％准确.