APA
Richard Horton, . (19871988). The Lancet. New York: pergamon press.
Chicago
Richard Horton, . 19871988. The Lancet. New York: pergamon press.
Harvard
Richard Horton, . (19871988). The Lancet. New York: pergamon press.
MLA
Richard Horton, . The Lancet. New York: pergamon press. 19871988.