Incoming Resources
- Harper Trophy, New York, 2007, ©2007
- Harper Trophy, New York, N.Y., 2009
- Harper Trophy, New York, N.Y., 2009.
- Harper Trophy, New York, 2008, ©2008
- Harper Trophy, New York, 2006
- Harper Trophy, New York, 2001
- Harper Trophy, New York, N.Y., 1993
- Harper Trophy, New York, 2003
- Harper Trophy, New York, 2006, ©2006
- Harper Trophy, New York, 1999, ©1999
- Harper Trophy, New York, 2007, ©2005