APA-čujuhus (7. p.)
Helm, R. M., Sellner, T. F., & O'Flaherty, J. C. (2020). Studies in Nietzsche and the Classical Tradition (Second edition.). Project Muse.
Chicago-čujuhus (17. p.)
Helm, Robert Meredith, Timothy F. Sellner, juo James C. O'Flaherty. Studies in Nietzsche and the Classical Tradition. Second edition. Baltimore, Maryland: Project Muse, 2020.
MLA-čujuhus (9. p.)
Helm, Robert Meredith, et al. Studies in Nietzsche and the Classical Tradition. Second edition. Project Muse, 2020.
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