- Author: T. Robert S. Broughton
- Language: English
- Year: 1951
- Author: T. Robert S. Broughton
- Language: English
- Year: 1951
- Author: T. Robert S. Broughton
- Language: English
- Year: 1951
- Author: S. Douglas Olson, Alexander Sens
- Language: English
- Year: 1999
- Author: Henry R. Immerwahr
- Language: English
- Year: 1966
- Author: Frank Olin Copley
- Language: English
- Year: 1956
- Author: Lionel Pearson
- Language: English
- Year: 1960
- Author: Helmbold W. C. & O'Neil E. N.
- Year: 1959
- Author: William F. Wyatt Jr.
- Language: English
- Year: 1972
- Author: Shackleton Bailey David Roy
- Language: English
- Year: 1976