APA (7th ed.) Citation

Barth, K., Bromiley, G. W., Fangmeier, J., & Stoevesandt, H. (1981). Letters, 1961 - 1968. Eerdmans.

Chicago Style (17th ed.) Citation

Barth, Karl, Geoffrey W. Bromiley, Jürgen Fangmeier, and Hinrich Stoevesandt. Letters, 1961 - 1968. Grand Rapids, Mich: Eerdmans, 1981.

MLA (8th ed.) Citation

Barth, Karl, et al. Letters, 1961 - 1968. Eerdmans, 1981.