Cita APA (7a ed.)
Osborne, R., & Edney, R. Philosophy for Beginners. Writers and Readers.
Cita estilo Chicago (17a ed.)
Osborne, Richard, y Ralph Edney. Philosophy for Beginners. Nueva York, EUA: Writers and Readers.
Cita MLA (9a ed.)
Osborne, Richard, y Ralph Edney. Philosophy for Beginners. Writers and Readers.
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