Manhattan Prep. (2018). 5 lb. book of gre practice problems (Third edition.). Manhattan Prep.
Citazione stile Chigago Style (17a edizione)Manhattan Prep. 5 Lb. Book of Gre Practice Problems. Third edition. New York: Manhattan Prep, 2018.
Citatione MLA (9a ed.)Manhattan Prep. 5 Lb. Book of Gre Practice Problems. Third edition. Manhattan Prep, 2018.
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