- Author: A.A. Fraenkel Y. Bar-Hillel A. Levy
- Language: English
- Year: 1973
- Author: Abraham A. Fraenkel Yehoshua Bar-Hillel Azriel Levy
- Language: English
- Year: 1973
- Author: A.A. Fraenkel Y. Bar-Hillel A. Levy
- Language: English
- Year: 1973
- Author: A.A. Fraenkel Y. Bar-Hillel A. Levy
- Language: English
- Year: 1973
- Author: A.A. Fraenkel Y. Bar-Hillel A. Levy
- Language: English
- Year: 1973