Cita APA (7th ed.)

Freeman, K. (1966). The pre-socratic philosophers: A companion to Diels, fragmente der Vorsokratiker (2a. ed.). Basil Blackwell.

Cita Chicago (17th ed.)

Freeman, Kathleen. The Pre-socratic Philosophers: A Companion to Diels, Fragmente Der Vorsokratiker. 2a. ed. Oxford: Basil Blackwell, 1966.

Cita MLA (9th ed.)

Freeman, Kathleen. The Pre-socratic Philosophers: A Companion to Diels, Fragmente Der Vorsokratiker. 2a. ed. Basil Blackwell, 1966.