Hickler, Holly
Allyn and Bacon, 1979
Buku Teks
Hayakawa, S.I., editor
London George & Unwin 1959
Buku Teks
Hayakawa, S.I.
Harcout, Brace & World, 1963
Buku Teks
editorial board, Gerald Reid Barry ... [and others] ; illustrated and designed by Hans Erni
Macdonald, 1966
Buku Teks
Shultz, William J.
Prentice-Hall, 1965
Buku Teks