- Author: George W. Ellis John E. Morris
- Language: English
- Year: 2001
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- Language: English
- Year: 2004
- Author: James Russell Soley
- Language: English
- Year: 2004
- Author: Frederick Phisterer
- Language: English
- Year: 2004
- Author: Daniel Ammen
- Language: English
- Year: 2004
- Author: Francis Winthrop Plafrey
- Language: English
- Year: 2004
- Author: Jacob D. Cox
- Language: English
- Year: 2004
- Author: John Codman Ropes
- Language: English
- Year: 2004
- Author: George Catlin
- Language: English
- Year: 2001
- Author: William Pittenger
- Language: English
- Year: 2000