1. 1
    ...HD 9738 .P16 .S797...
    Serial
  2. 2
    Published 1993
    ...HA 4018.7 .S797...
    Book
  3. 3
    Published 1982
    ...HD 8930.5 .A5 .S797...
    Book
  4. 4
    ...HD 5850.67 .A6. W527...
    Journal