Gaya APA
Niebuhr, R, H. (1999).
Responsible Self, The : An Essay in Christian Moral Philosophy .
Hoboken, NJ:
Westminister John Knoxx Press.
Gaya MLA
Niebuhr, Richard, H..
"Responsible Self, The : An Essay in Christian Moral Philosophy".
Hoboken, NJ:
Westminister John Knoxx Press,
1999.
Academic.