Graduate Record Examinations Board & Educational Testing Service. (1993). Practicing to take the GRE mathematics test (2nd ed.). Published by Educational Testing Service for Graduate Record Examinations Board.
Chicago-viite (17. p.)Graduate Record Examinations Board ja Educational Testing Service. Practicing to Take the GRE Mathematics Test. 2nd ed. Princeton, N.J: Published by Educational Testing Service for Graduate Record Examinations Board, 1993.
MLA-viite (9. p.)Graduate Record Examinations Board ja Educational Testing Service. Practicing to Take the GRE Mathematics Test. 2nd ed. Published by Educational Testing Service for Graduate Record Examinations Board, 1993.
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