Allen, J. W., author
Methuen, 1951
Buku Teks
Wielenga, Friso. author
Bloomsbury Academic, 2015
Buku Teks
edited by Isaac Kramnick
[publisher not identified], 1969
Buku Teks
Wanlass, Lawrence C., author
Appleton-Century-Crofts, 1953
Buku Teks
Brecht, Arnold, author
Princenton University Press, 1968
Buku Teks