Count, Earl Wendel
Henry Schuman, 1950
Buku Teks
Firth, Raymond, author
The New American Library, 1958
Buku Teks
Garn, Stanley M.
Charles C. Thomas, 1971
Buku Teks
Kennedy, Raymond
[publisher not identified], [date of publication not identified]
Buku Teks
Nesturkh, M. F. (Mikhail Fedorovich)
Foreign Languages Publishing House, [date of publication not identified]
Buku Teks