1. 1
    Published 1981
    ...QC 793.5 .E628 .F469...
    Book
  2. 2
    Published 2001
    ...QC 793.5 .E62 .H673 2001...
    Book
  3. 3
    ...QC 16 .T4 .D261...
    Book
  4. 4
    by Dahl, Per F., 1932-
    Published 1997
    ...QC 793.5 .E62 .D131...
    Book