- Author: Errol E. Harris (auth.)
- Language: English
- Year: 1978
- Author: Errol E. Harris (auth.)
- Language: English
- Year: 1973
- Author: Errol E. Harris (auth.)
- Language: English
- Year: 2006
- Author: Errol E. Harris (auth.)
- Language: English
- Year: 2006
- Author: Errol E. Harris (auth.)
- Language: English
- Year: 2006