Citazione Stile APA (7a Edizione)

Zeller, E. (1955). Outlines of the history of Greek philosophy (13th ed., rev.). [Meridian Books].

Citazione stile Chigago Style (17a edizione)

Zeller, Eduard. Outlines of the History of Greek Philosophy. 13th ed., rev. New York: [Meridian Books], 1955.

Citatione MLA (8a ed.)

Zeller, Eduard. Outlines of the History of Greek Philosophy. 13th ed., rev. [Meridian Books], 1955.