APA
Barth K., . (1981). The Christian life. Edinburgh: T. & T. Clark.
Chicago
Barth Karl, . 1981. The Christian life. Edinburgh: T. & T. Clark.
Harvard
Barth K., . (1981). The Christian life. Edinburgh: T. & T. Clark.
MLA
Barth Karl, . The Christian life. Edinburgh: T. & T. Clark. 1981.