- Author: Arthur Mendel, Curt Sachs, Carroll C. Pratt
- Language: English
- Year: 1957
- Author: René Descartes, Paul J. Olscamp
- Language: English
- Year: 1965
- Author: Henri Bergson, Herbert Dingle (editor), Leon Jacobson
- Language: English
- Year: 1965
- Author: Gregory the Great Gregorius I Myra L. Uhlfelder (transl.)
- Language: English
- Year: 1967
- Author: Christian Wolff
- Language: English
- Year: 1963
Medea
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- Author: Lucius Annaeus Seneca Moses Hadas (trans.)
- Language: English
- Year: 1956
- Author: Bonaventure Saint Cardinal
- Language: English
- Year: 1953