Cita APA (7th ed.)

Porphyry, a. 2. 3., Smith, A., & Wasserstein, D. (1993). Porphyrii philosophi fragmenta. Teubner.

Cita Chicago (17th ed.)

Porphyry, approximately 234-approximately 305, Andrew Smith, i Devid Wasserstein. Porphyrii Philosophi Fragmenta. Stutgardiae: Teubner, 1993.

Cita MLA (9th ed.)

Porphyry, approximately 234-approximately 305, et al. Porphyrii Philosophi Fragmenta. Teubner, 1993.