APA (7e ed.) Bronvermelding

Freeman, K. (1948). Ancilla to the Pre-Socratic Philosophers: By Kathleen Freeman (1st publ.). Blackwell.

Chicago (17e ed.) Bronvermelding

Freeman, Kathleen. Ancilla to the Pre-Socratic Philosophers: By Kathleen Freeman. 1st publ. Oxford: Blackwell, 1948.

MLA (8e ed.) Bronvermelding

Freeman, Kathleen. Ancilla to the Pre-Socratic Philosophers: By Kathleen Freeman. 1st publ. Blackwell, 1948.