1. 1
    Published 1998
    ...HG 925 .U55 1998...
    Book
  2. 2
    Published 1996
    ...HG 925 .U84 1996...
    Book
  3. 3
    by Sandbu, Martin E.
    Published 2015
    ...HG 925 .S24 2015...
    Book
  4. 4
    by Marsh, David, 1952-
    Published 2009
    ...HG 930.5 .M365 2009...
    Book