Gaya APA
On being responsible: issues in personal ethics, ed. by J.M.Gustafson & J.T.Laney.
.
(-1969).
London:
SCM Press.
Gaya MLA
On being responsible: issues in personal ethics, ed. by J.M.Gustafson & J.T.Laney.
.
.
London:
SCM Press,
-1969.
Buku.