Fitzgerald, C.P.
Cresset Press, 1958
Buku Teks
Foreign Languages Press, 1950
Buku Teks
Rosinger, Lawrence K., author
Princeton, 1944
Buku Teks
Barnett, A. Doak (Arthur Doak), author
Frederick A. Praeger, 1962
Buku Teks
Barnett, A. Doak (Arthur Doak), author
Columbia University Press, 1967
Buku Teks