Creighton, Donald, author
Macmillan, 1981
Buku Teks
Jenness, Diamond, author
National Museum of Canada, 1960
Buku Teks
Wells, Kenneth McNeill, author
Jarrold & Sons, 1959
Buku Teks
Kneen, W.R., author
The English Language Book Society, 1974
Buku Teks
Austrian Federal Chancellery, 1977
Buku Teks