APA (7e ed.) Bronvermelding

Jaspers, K., & Ashton, E. (1963). Philosophy and the world: Selected essays and lectures. Regnery.

Chicago (17e ed.) Bronvermelding

Jaspers, Karl, en E.B Ashton. Philosophy and the World: Selected Essays and Lectures. Chicago: Regnery, 1963.

MLA (9e ed.) Bronvermelding

Jaspers, Karl, en E.B Ashton. Philosophy and the World: Selected Essays and Lectures. Regnery, 1963.