Gilmore, Grant
Ohio State University Press, 1974
Buku Teks
Kagan, Shelly
Yale University Press, 2012
Buku Teks
Kagan, Shelly
Yale University Press, 2012
Buku Teks
Rosenberg, Jerry
Ramdom House, 1969
Buku Teks
Crystal, David, 1941-
Cambridge University Press, 2004
Buku Teks