Cita APA (7a ed.)

Zeller, E. (1955). Outlines of the history of Greek philosophy (13th.ed.). Meridian books.

Cita Chicago Style (17a ed.)

Zeller, Eduard. Outlines of the History of Greek Philosophy. 13th.ed. New York: Meridian books, 1955.

Cita MLA (9a ed.)

Zeller, Eduard. Outlines of the History of Greek Philosophy. 13th.ed. Meridian books, 1955.