Cita APA (7a ed.)

Freeman, K. (1959). The Pre-Socratic Philosophers: A Companion to Diels, Fragmente der Vorsokratiker (2nd ed.). Harvard University.

Cita Chicago Style (17a ed.)

Freeman, Kathleen. The Pre-Socratic Philosophers: A Companion to Diels, Fragmente Der Vorsokratiker. 2nd ed. Cambridge, Mass.: Harvard University, 1959.

Cita MLA (9a ed.)

Freeman, Kathleen. The Pre-Socratic Philosophers: A Companion to Diels, Fragmente Der Vorsokratiker. 2nd ed. Harvard University, 1959.