Miller, Jamie, author
Oxford University Press, 2016
eBooks
Spooner, F.P.
Fredereck A.Praeger Publisher, 1960
Buku Teks
Ngurbane, Jordan K.
Frederick A. Praeger, 1963
Buku Teks
Kennedy, Scott
Charles Scribner's , 1973
Buku Teks
edited by Patrick Giddy
The Council For Research In Values And Philosophy, 2001
Buku Teks