- Author: Albert G. Fadell
- Language: English
- Year: 1968
- Author: Pierre von Meiss
- Language: English
- Year: 1990
- Author: Henry Steele Commager
- Language: English
- Year: 1965
- Author: Henry Steele Commager
- Language: English
- Year: 1960
- Author: Henry Steele Commager
- Language: English
- Year: 1964
- Author: Harvey Fletcher
- Language: Unknown
- Year: 1953
- Author: John Colbeck
- Language: English
- Author: Frede Sonnenschmidt
- Language: English
- Year: 1992
- Author: Frank G. Ashbrook
- Language: English
- Year: 1973