- Author: Percy George Wilson
- Language: English
- Year: 1950
- Author: Maurice Ashley
- Language: English
- Year: 1958
- Author: A. A. Luce Arthur Aston Luce
- Language: English
- Year: 1958
- Author: M. P. O. Burgers
- Language: English
- Year: 1957
- Author: Tony Wilkins
- Language: English
- Year: 1970
- Author: G. L. Lewis M. A. D. Phil
- Language: Turkish-English
- Year: 1919
- Author: M. R. Gavin J. E. Houldin
- Language: English
- Year: 1959
- Author: Maximilian Fourman
- Language: English, Русский
- Year: 1943
- Author: H. Koolhoven
- Language: English, Dutch
- Year: 1968