APA
Richard Horton, . (1979). The Lancet. New York: Elsevier Science Publishers B. V.
Chicago
Richard Horton, . 1979. The Lancet. New York: Elsevier Science Publishers B. V.
Harvard
Richard Horton, . (1979). The Lancet. New York: Elsevier Science Publishers B. V.
MLA
Richard Horton, . The Lancet. New York: Elsevier Science Publishers B. V. 1979.