APA-Zitierstil (7. Ausg.)

Graef, O. d., & Frankfurt, H. G. (1998). The importance of being earnest (about the right things). Ethical perspectives, 5(1), 15-21.

Chicago-Zitierstil (17. Ausg.)

Graef, Ortwin de, und Harry G. Frankfurt. "The Importance of Being Earnest (about the Right Things)." Ethical Perspectives 5, no. 1 (1998): 15-21.

MLA-Zitierstil (8. Ausg.)

Graef, Ortwin de, und Harry G. Frankfurt. "The Importance of Being Earnest (about the Right Things)." Ethical Perspectives, vol. 5, no. 1, 1998, pp. 15-21.