Evans, Bergen, 1904-, author
Random House, 1957
Buku Referensi
Mellinkoff, David, author
[Publisher not identified], 1992
Buku Teks
Cummings, Paul, author
St. Martin's Press, 1966
Buku Referensi
Nicholson, Margaret, author
Oxford University Press, 1957
Buku Referensi
Haynes, Williams, author
D. Van Nostrand, 1959
Buku Referensi