- Author: Hermann Bengtson
- Language: Persian
- Year: 2009
- Author: Hermann Bengtson
- Language: Spanish
- Year: 1965
- Author: Hermann Bengtson
- Language: German
- Year: 1962
- Author: Hermann Bengtson
- Language: Spanish
- Year: 1989
- Author: Hermann Bengtson
- Language: Spanish
- Year: 1965
- Author: Hermann Bengtson
- Language: Spanish
- Year: 1989
- Author: Hermann Bengtson
- Language: Italian
- Year: 2003
- Author: Hermann Bengtson, R.I. Frank and Frank D. Gilliard (trans.)
- Language: English
- Year: 1971