(2001). GRE: Practicing to take the general test (9th ed.). Educational Testing Service.
Lua i Stíl Chicago (17ú heag.)GRE: Practicing to Take the General Test. 9th ed. [s.l.]: Educational Testing Service, 2001.
Lua MLA (9ú heag.)GRE: Practicing to Take the General Test. 9th ed. Educational Testing Service, 2001.
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