Jaffe, E. D. (2009). Barron's (15th.). Galgotia Publication.
Chicago-čujuhus (17. p.)Jaffe, Eugene D. Barron's. 15th. Galgotia Publication, 2009.
MLA-čujuhus (9. p.)Jaffe, Eugene D. Barron's. 15th. Galgotia Publication, 2009.
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