Keeton, George W., 1902-1989., editor
Stevans & Sons , 1949
Buku Teks
edited by George H. Blakeslee
Steven, 1949
Buku Teks
C.L. van Langenhuysen, 1918
Buku Teks
Weale, Putnam, author
Macmillan, 1905
Buku Teks
Millard, Thomas F., author
Fisher Unwin, 1908
Buku Teks