- Author: Gordon L. Clark Maryann P. Feldman Meric S. Gertler
- Language: English
- Year: 2000
- Author: Gordon L. Clark Maryann P. Feldman Meric S. Gertler
- Language: English
- Year: 2000
- Author: Cynthia Clark Northrup
- Language: English
- Year: 2003
- Author: Meriwether Lewis William Clark Bernard DeVoto Stephen E. Ambrose
- Language: English
- Year: 1997
- Author: Kennedy Clark Kevin Hamilton
- Language: English
- Year: 1999
- Author: Michael Alexander Geoffrey Clark
- Language: English
- Year: 2007
- Author: Patricia M. Lambert Keith Jacobi David C. Weaver Debra L. Gold Clark Spencer Larsen Dale L. Hutchinson Mary Lucas Powell Mark R. Schurr Lisa Sattenspiel Marianne Reeves Matthew A. Williamson Leslie Sering Margaret J. Schoeninger Elizabeth I. Monahan Lynette Norr Patricia S. Bridges
- Language: English
- Year: 2000
