1
by Plato
Project Gutenberg

2
by Kazmi, Ali A.
Published 1998
University of Calgary Press

3
by Platts, Mark <<de Bretton>>
Published 1997
MIT Press

4
by Hoffert, Sylvia D.
Published 1995
Indiana University Press

5
MIT Press

6
by Freeman, Edward Augustus
BiblioBytes

7
by Stevenson, Robert Louis
BiblioBytes

8
by Davis, Wayne A.
Cambridge University Press