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판 5개, 최신 판부터
Houghton Mifflin Harcourt Publishing Company, 2015, ISBN 9780544187221
Houghton Mifflin Harcourt, 2015, ISBN 9780544464018
Wiley & Sons, Incorporated, John, 2011, ISBN 9781118065136
Wiley & Sons, Incorporated, John, 2011, ISBN 9781118065112
Wiley & Sons, Incorporated, John, 2011, ISBN 9781118065105