APA (7th ed.) Citation

Bonhoeffer, D., & De Gruchy, J. W. (1988). Dietrich Bonhoeffer: Witness to Jesus Christ. Collins.

Chicago Style (17th ed.) Citation

Bonhoeffer, Dietrich, and John W. De Gruchy. Dietrich Bonhoeffer: Witness to Jesus Christ. London: Collins, 1988.

MLA (9th ed.) Citation

Bonhoeffer, Dietrich, and John W. De Gruchy. Dietrich Bonhoeffer: Witness to Jesus Christ. Collins, 1988.

Warning: These citations may not always be 100% accurate.