1. 1
    Published 2001
    ...HG 9343 .N52 .W926...
    Serial
  2. 2
    Published 2002
    ...HD 5715.5 .N5 .W926...
    Journal
  3. 3
    Published 1893
    ...HD 8930.5 .A1 .J86...
    Journal
  4. 4
  5. 5
    Published 1976
    ...HD 5100.4 .A1 .W131...
    Journal