1. 1
    Published 1988
    ...HD 4811 .N532...
    Serial
  2. 2
    Published 1992
    ...HV 515.5 .A1 .N532 s...
    Serial
  3. 3
    Published 1996
    ...HV 515.5 .A1 .N532 s...
    Serial
  4. 4
    Published 1992
    ...HV 515.5. .A1 .N532 s...
    Serial
  5. 5
    Published 1998
    ...HV 7215.5 .R434...
    Journal