1. 1
    Published 1984
    ...HT 169 .N52 .W4 .H2552...
    Conference Proceeding Book
  2. 2
    by Startup, R. M.
    Published 1972
    ...HE 7416 .W4 .S796...
    Book
  3. 3
    Published 1998
    ...HT 169 .N52 .W4 .N874...
    Book