Educational Testing Service. The official guide to the GRE revised general test (2a ed.).
Chicago Style (17th ed.) CitationEducational Testing Service. The Official Guide to the GRE Revised General Test. 2a ed.
MLA引文Educational Testing Service. The Official Guide to the GRE Revised General Test. 2a ed.
警告：這些引文格式不一定是100％准確.