Παραπομπή σε μορφή APA (7η εκδ.)

Cleve, F. M. (1973). The giants of pre-sophistic Greek philosophy: An attempt to reconstruct their thoughts : by Felix M. Cleve (3d ed.). M. Nijhoff.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Cleve, Felix M. The Giants of Pre-sophistic Greek Philosophy: An Attempt to Reconstruct Their Thoughts : By Felix M. Cleve. 3d ed. The Hague: M. Nijhoff, 1973.

Παραπομπή σε μορφή MLA (8th εκδ.)

Cleve, Felix M. The Giants of Pre-sophistic Greek Philosophy: An Attempt to Reconstruct Their Thoughts : By Felix M. Cleve. 3d ed. M. Nijhoff, 1973.