(2003). GRE general test, [electronic resource] Powerprep software.
Chicagoスタイル(17版)引用形式GRE General Test, [electronic Resource] Powerprep Software. 2003.
MLA(9版)引用形式GRE General Test, [electronic Resource] Powerprep Software. 2003.
警告: この引用は必ずしも正確ではありません.