Strunk, W. (1959). The elements of style. New York: Macmillan.
Chicago Style aipamenaStrunk, William. The Elements of Style. New York: Macmillan, 1959.
MLA aipamenaStrunk, William. The Elements of Style. New York: Macmillan, 1959.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.