EDUCATIONAL TESTING SERVICE. (2002). GRADUATE RECORD EXAMINATIONS (GRE). EDUCATIONAL TESTING SERVICE.
芝加哥风格引文EDUCATIONAL TESTING SERVICE. GRADUATE RECORD EXAMINATIONS (GRE). NEW JERSEY: EDUCATIONAL TESTING SERVICE, 2002.
MLA引文EDUCATIONAL TESTING SERVICE. GRADUATE RECORD EXAMINATIONS (GRE). EDUCATIONAL TESTING SERVICE, 2002.
警告：这些引文格式不一定是100％准确.