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판 14개, 최신 판부터
Kessinger Publishing, LLC, 2007, 양장(하드커버), ISBN 9780548014899
Rupa & Co., 2005, 무선(페이퍼백), ISBN 9788171674312
Kessinger Publishing, 2005, 무선(페이퍼백), ISBN 9781417936151
Kessinger Publishing, 2005, 무선(페이퍼백), ISBN 9781417936144
bnpublishing.com, 2005, CD-ROM, ISBN 9789561001664
Kessinger Publishing, LLC, 2005, 무선(페이퍼백), ISBN 9781417907724
Oxford University Press, 1999, ISBN 9780192837523
Oxford University Press, 1993, ISBN 9780192829238
Cambridge University Press, 1984, ISBN 9780521271356
Everyman Ltd, 1983, ISBN 9780460119078
Branden Books, 1979, 무선(페이퍼백), ISBN 9780828314466
Ayer Co Pub, 1977, 양장(하드커버), ISBN 9780836939019
Cassell, 1970, ISBN 9780304934829
Barrons Educational Series, 1963, 무선(페이퍼백), ISBN 9780812004946