Trigger, Bruce G.
Cambridge University Press, 2006
Buku Teks
edited by Isaac Kramnick
[publisher not identified], 1969
Buku Teks
Wanlass, Lawrence C.
Appleton-Century-Crofts, 1953
Buku Teks
Trigger, Bruce G.
Cambridge University Press, 1989
Buku Teks
Bury, J.B.
Oxford University Press, 1913
Buku Teks