홈 / 책 찾기 / 판 고르기
판 5개, 최신 판부터
Lulu Press, Inc., 2010, ISBN 9780557744176
Kessinger Publishing, LLC, 2007, 무선(페이퍼백), ISBN 9780548307526
Kessinger Publishing, LLC, 2007, 양장(하드커버), ISBN 9780548364581
American Institute for Psychological Research, The, 1990, ISBN 9780899202181
Ayer Co Pub, 1983, 양장(하드커버), ISBN 9780405051357