1. 1
    by Churchman, Geoffrey B.
    Published 1990
    ...HE 3550.5 .C563...
    Book
  2. 2
    by Churchman, Geoffrey B.
    Published 1992
    ...HE 3550.5 .Z7 .S7 .C563 s...
    Book
  3. 3
    by Hurst, Tony, 1946-
    Published 1990
    ...HE 3550.5 .Z7 .O8 .H966...
    Book
  4. 4
    by Hurst, Tony, 1946-
    Published 2004
    ...HE 3550.5 .Z7 .O8 .H966 2004...
    Book
  5. 5
    by Hurst, Tony, 1946-
    Published 2004
    ...HE 3550.5 .Z7 .K5 .H966 2004...
    Book
  6. 6
    by Churchman, Geoffrey B.
    Published 2001
    ...HE 3550.5 .C563 2001...
    Book
  7. 7
    by Hurst, Tony, 1946-
    Published 2008
    ...HE 3550.5 .Z7 .O8 .H966 2008...
    Book