Dunn, L.C., author
The New American Library, [1952]
Buku Teks
Woodward, Val, author
Burgess, 1981
Buku Teks
by L. C. Dunn [and others]
The Unesco Press, 1956
Buku Teks
Healey, Joseph F., 1945-, author
Pine Forge Press, 2007
Buku Teks
Healey, Joseph F., 1945-, author
Sage, 2012
Buku Teks