Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.

APA Citation Edition Citation

O'Brien, D. (1969). Empedocles' cosmic cycle: A reconstruction from the fragments and secondary sources. Cambridge U.P..

Chicago Citation Edition Citation

O'Brien, Denis. Empedocles' Cosmic Cycle: A Reconstruction from the Fragments and Secondary Sources. London: Cambridge U.P., 1969.

MLA Citation Edition Citation

O'Brien, Denis. Empedocles' Cosmic Cycle: A Reconstruction from the Fragments and Secondary Sources. Cambridge U.P., 1969.