Πλάτων
Thomas E. Pinelli
United States. General Accounting Office
Horace
Kokuritsu Kokkai Toshokan (Japan)
United States. Congress. Senate. Committee on Territories
Organisation for Economic Co-operation and Development
Alan Brinkley
Martin Buber
Judith Bell
Jack Gourman
Edward Carpenter
Ontario Educational Research Council. Conference
Unknown Author
Scottish Office Education Dept.
Xianglei Chen
Ernst von Glasersfeld
Guizhou sheng di fang zhi bian zuan wei yuan hui
Liaoning Sheng di fang zhi bian zuan wei yuan hui. Ban gong shi