18. which if the following can not be listed as a source on the works cited page for this paper?
a. flatbush, edna. the tantalizing tongue. new york: brewster and company, 1987
b. barton, charles. tongue doctors of the west. brooklyn: compton and jones, 1992
c. craig, samuel. lipstick, lollipops, and death. england: beckins, 1995
d. boom, humphrey. where the tastebuds grow: a look at amazing surgeons. new zealand, 1979