1. 1
    Published 1980
    ...HV 5825 .E84...
    Government Document Conference Proceeding Book
  2. 2
    by Platek, R. (Richard)
    Published 1985
    ...HN 29 .P716...
    Government Document Book
  3. 3
    Published 1975
    ...HA 31.2 .S963...
    Government Document Journal
  4. 4
    Published 2014
    ...H 62 .Q3546 2014...
    Government Document Book