1. 1
    by Churchman, Geoffrey B.
    Published 1992
    ...HE 3550.5 .Z7 .S7 .C563 s...
    Book
  2. 2
    by Churchman, Geoffrey B.
    Published 1989
    ...HE 3550.5 .Z7 .S7 .C563 r...
    Book
  3. 3
    by Angus, D. W.
    Published 1950
    ...HE 3550.5 .Z7 .S7 .A595 1950...
    Book