(2019). GRE® Graduate Record Examination prep plus 2020. Kaplan Publishing.
Chicago Style (17th ed.) CitationGRE® Graduate Record Examination Prep Plus 2020. New York, NY: Kaplan Publishing, 2019.
MLA (9th ed.) CitationGRE® Graduate Record Examination Prep Plus 2020. Kaplan Publishing, 2019.
Warning: These citations may not always be 100% accurate.