Styl cytowania APA

Zuckmayer, C., Barth, K., & Stoevesandt, H. (1982). A late friendship: The letters of Karl Barth and Carl Zuckmayer. Eerdmans.

Styl cytowania Chicago

Zuckmayer, Carl, Karl Barth, i Hinrich Stoevesandt. A Late Friendship: The Letters of Karl Barth and Carl Zuckmayer. Grand Rapids, Mich: Eerdmans, 1982.

Styl cytowania MLA

Zuckmayer, Carl, et al. A Late Friendship: The Letters of Karl Barth and Carl Zuckmayer. Eerdmans, 1982.