Bell, H. T. Montague, author
George Routledge & Sons, 1919
Buku Teks
Woodhead, H. G. W. (Henry George Wandesforde)
E. P. Dutton, 1914
Buku Teks
Bell, H. T. Montague, author
George Routledge & Sons, 1916
Buku Teks
Simpkin, Marshall, Hamilton, Kent, 1927
Buku Teks
University of Chicago, 1928
Buku Teks