APA-referens (7:e uppl.)

Thielicke, H. (1969). How modern should theology be? Fortress Press.

Chicago-referens (17:e uppl.)

Thielicke, Helmut. How Modern Should Theology Be? Philadelphia: Fortress Press, 1969.

MLA-referens (9:e uppl.)

Thielicke, Helmut. How Modern Should Theology Be? Fortress Press, 1969.