Wormer, Katherine Stuart van, author
Allyn and Bacon, 2000
Buku Teks
edited by Barbara Raffel Price
Clark Boardman, 1982
Buku Teks
McNamara, Robert Hartmann, author
McGraw-Hill, 2009
Buku Teks
Adler, Freda
McGraw-Hill, 2007
Multimedia
Adler, Freda
McGraw-Hill, 2007
Multimedia