Incoming Resources
- Harper Trophy, New York, 2000
- Harper Trophy, New York, c2004
- Harper Trophy, New York, 2002
- Harper Trophy, New York, c1998
- Harper Trophy, New York, c2008
- Harper Trophy, New York, 1995
- Harper Trophy, New York, 2009, c2007
- Harper Trophy, New York, NY, 1993
- Harper Trophy, New York, 2009
- Harper Trophy, New York, 2008