10-ISBN 0521482380/13-ISBN 9780521482387; 10-ISBN 0521484057/13-ISBN 9780521484053; OCLC 31515308* Keene, Donald.
10-ISBN 0521482380/13-ISBN 9780521482387; 10-ISBN 0521484057/13-ISBN 9780521484053; OCLC 31515308* Keene, Donald.