Hall, D.G.E., author
University of Pennsylvani Press, 1971
Buku Teks
Hall, D.G.E., author
Hutchinson's University Library, 1950
Buku Teks
Welch, Joseph N., author
Houghton Miffiln, 1956
Buku Teks
Cady, John F.
Harvard University Press, 1976
Buku Teks
Max
Sampson Low, Marston, 1900
Buku Teks