홈 / 책 찾기 / 판 고르기
판 8개, 최신 판부터
HarperCollins Publishers, 2012, ISBN 9780062196798
HarperBusiness, 2011, 무선(페이퍼백), ISBN 9780061251320
HarperCollins Publishers, 2008, ISBN 9780061542411
HarperCollins Publishers, 2008, ISBN 9780061542428
HarperCollins Publishers, 2008, ISBN 9780061542398
HarperCollins Publishers, 2008, ISBN 9780061542435
Collins, 2008, 양장(하드커버), ISBN 9780061251306
HarperCollins, 2008, Electronic resource, ISBN 9780061542381