Buckley, Jerome Hamilton, author
Foresman, 1965
Buku Teks
edited by Richard Ellman and Robert O'Clair
W.W. Norton, 1973
Buku Teks
Houghton, Walter E.
Houghton Mifflin, 1959
Buku Teks
Harcourt, Brace and company, 1950
Buku Teks
Stafford, Fiona, author
Wiley Blackwell, 2012
Buku Teks