홈 / 책 찾기 / 판 고르기
판 4개, 최신 판부터
New York, 2004, ISBN 9780521831857
Cambridge University Press, 2002, ISBN 9780521000956
Cambridge University Press, 1984, ISBN 9780521302234
Addison-Wesley Pub. Co., Advanced Book Program, 1977, ISBN 9780201135022
