1. 1
    by Clough, Ralph N., 1916-
    Published 1993
    ...Westview Press,...
    Book
  2. 2
    Published 1994
    ...Westview Press,...
    Book
  3. 3
    by Copper, John Franklin
    Published 2009
    ...Westview Press,...
    Connect to electronic resource
    Electronic eBook
  4. 4
    by Copper, John Franklin
    Published 2013
    ...Westview Press,...
    Connect to electronic resource
    Electronic eBook