1
by Hill, Charles W. L.
Published 2003
2
by Dunne, Lavon J.
Published 2002
3
by Ugarteche, Oscar
Published 2000
4
by Bensoussan, Babette E
Published 2008
5
by Pitts, Robert A.
Published 2006
6
by Ramsey, Dougles K.
Published 1987