APA način citiranja (7. izdanje)
Wolff, E., & Versfeld, R. (2021). Martin Versfeld: A South African Philosopher in Dark Times. Project Muse.
Čikaški stil citiranja (17. izdanje)
Wolff, Ernst, i Ruth Versfeld. Martin Versfeld: A South African Philosopher in Dark Times. Baltimore, Maryland: Project Muse, 2021.
MLA način citiranja (9. izdanje)
Wolff, Ernst, i Ruth Versfeld. Martin Versfeld: A South African Philosopher in Dark Times. Project Muse, 2021.
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