Cobban, Alfred
[publisher not identified], [date of publication no identified]
Buku Teks
Cobban, Alfred
Braziller, 1965
Buku Teks
Cobban, Alfred
Penguin Books, 1990
Buku Teks
Cambridge University Press, , 2000
Buku Teks
Roe, F.C.
Longmans, Green , 1956
Buku Teks