Brownstein, S. C., Green, S., Hilbert, S., & Weiner, M. (1990). How to prepare for the graduate record examination: GRE general test (9th ed.). Barrons.
Lua i Stíl Chicago (17ú heag.)Brownstein, Samuel C., Sharon Green, Stephen Hilbert, agus Mitchel Weiner. How to Prepare for the Graduate Record Examination: GRE General Test. 9th ed. New York: Barrons, 1990.
Lua MLA (9ú heag.)Brownstein, Samuel C., et al. How to Prepare for the Graduate Record Examination: GRE General Test. 9th ed. Barrons, 1990.
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