APA (7th ed.) Citation

Barth, K. (1964). Evangelical theology: An introduction. Doubleday Canada.

Chicago Style (17th ed.) Citation

Barth, Karl. Evangelical Theology: An Introduction. Toronto: Doubleday Canada, 1964.

MLA (9th ed.) Citation

Barth, Karl. Evangelical Theology: An Introduction. Doubleday Canada, 1964.