1. 1
    Published 1979
    ...QC 803 .A6 .F567...
    Book
  2. 2
    by Brekke, Asgeir
    Published 1997
    ...QC 879.232 .P64 .B835...
    Book
  3. 3
    ...QC 803 .P7 .U58...
    Serial