1. 1
    Published 1992
    ...HC 661 .A5 .N532...
    Serial
  2. 2
    Published 1977
    ...HG 8784 .N5 .L722...
    Serial
  3. 3
    Published 1992
    ...HG 3883 .N5 .N5322...
    Serial
  4. 4
    Published 1990
    ...HA 37 .N5 .S979...
    Journal
  5. 5
    Published 1975
    ...HG 8784 .N5 .L722...
    Serial
  6. 6
    Published 1986
    ...HD 2321 .N532...
    Serial
  7. 7
    Published 1983
    ...HA 3041 .N532 n...
    Journal