Niebuhr, H. (1963). The responsible self: An essay in christian moral philosophy. by Harper & Row.
Chicago-viite (17. p.)Niebuhr, H.Richard. The Responsible Self: An Essay in Christian Moral Philosophy. New York: by Harper & Row, 1963.
MLA-viite (9. p.)Niebuhr, H.Richard. The Responsible Self: An Essay in Christian Moral Philosophy. by Harper & Row, 1963.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.