Humpreys, A.R., author
Grove Press, 1962
Buku Teks
Mumford, Lewis, author
The literary Guild of America , 1929
Buku Teks
Solomon, Pearl Chesler, author
Columbia University Press, 1975
Buku Teks
Bergeijk, Herman Van
Birkhauser Verlag, 1997
Buku Teks
Schilp, C.A., author
Moussault, 1967
Buku Teks