KAPLAN. (2016). GRE PREMIER 2017. KAPLAN PUBISHING.
Cita Chicago (17th ed.)KAPLAN. GRE PREMIER 2017. NEW YORK: KAPLAN PUBISHING, 2016.
Cita MLA (9th ed.)KAPLAN. GRE PREMIER 2017. KAPLAN PUBISHING, 2016.
Atenció: Aquestes cites poden no estar 100% correctes.