Canning, Joseph
Routledge, 1996
Buku Teks
Wanlass, Lawrence C., author
Appleton-Century-Crofts, 1953
Buku Teks
edited by Isaac Kramnick
[publisher not identified], 1969
Buku Teks
Coleman, Janet, author
Blackwell Publishers, Ltd, 2000
Buku Teks
Routledge, 2000
Buku Teks