Brownstelin, S. C., & Winer, M. (1987). Barron's how to prepare for the graduate record examination general test (7th Ed.). Galgotia Piblications.
Chicago-tyylinen lähdeviittausBrownstelin, Samuel C., ja Mitchel Winer. Barron's How to Prepare for the Graduate Record Examination General Test. 7th Ed. New Delhi: Galgotia Piblications, 1987.
MLA-viiteBrownstelin, Samuel C., ja Mitchel Winer. Barron's How to Prepare for the Graduate Record Examination General Test. 7th Ed. Galgotia Piblications, 1987.
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