1. 1
    Published 1986
    ...HC 685 .Q1...
    Journal
  2. 2
    by Sheppard, David K.
    Published 1989
    ...HG 3530.5 .A7 .S549...
    Book
  3. 3
    Published 1994
    ...HC 686 .A1 .O15...
    Serial
  4. 4
    Published 1990
    ...HG 3537 .A7 .Q1...
    Journal
  5. 5
    Published 1989
    ...HG 3536 .A7 .R433...
    Serial