Konyn, G. (1967). The story of philosophy. Frederick Muller.
Cita Chicago (17th ed.)Konyn, Gerald. The Story of Philosophy. Hampshire: Frederick Muller, 1967.
Cita MLA (9th ed.)Konyn, Gerald. The Story of Philosophy. Frederick Muller, 1967.
Atenció: Aquestes cites poden no estar 100% correctes.