APA (7th ed.) Zitazioa

Barth, K. (1963). Evangelical theology: An introduction. Anchor Books.

Chicago Style (17th ed.) Zitazioa

Barth, Karl. Evangelical Theology: An Introduction. New York: Anchor Books, 1963.

MLA (9th ed.) Zitazioa

Barth, Karl. Evangelical Theology: An Introduction. Anchor Books, 1963.