Ferber, R. (2015). Key concepts in philosophy: An introduction. Academia.
Chicago Style (17th ed.) CitationFerber, Rafael. Key Concepts in Philosophy: An Introduction. Sankt Augustin: Academia, 2015.
MLA (9th ed.) CitationFerber, Rafael. Key Concepts in Philosophy: An Introduction. Academia, 2015.
Warning: These citations may not always be 100% accurate.