- Author: Huston Smith, Finley P. Dunne Jr. (ed.)
- Language: English
- Year: 1970
- Author: Boyko Hugo
- Language: English
- Year: 1961
- Author: U Thant (auth.) Stuart Mudd (eds.)
- Language: English
- Year: 1966
- Author: Dr. Hugo Boyko (auth.) Dr. Hugo Boyko (eds.)
- Language: English
- Year: 1968
- Author: Hugo Boyko Ph.D. (auth.) Hugo Boyko Ph.D. (eds.)
- Language: English
- Year: 1961
- Author: Marshall H. Stone (auth.) John Nef (eds.)
- Language: English
- Year: 1968
- Author: Huston Smith (auth.) Finley P. Dunne Jr. (eds.)
- Language: English
- Year: 1970
- Author: Earl Bertrand Arthur William Russell O.M. M.A. F.R.S. (auth.) Stuart Mudd (eds.)
- Language: English
- Year: 1964