APA
Peter Greenwald, . (1989). Journal of the National Cancer Institute. New York: Elsevier.
Chicago
Peter Greenwald, . 1989. Journal of the National Cancer Institute. New York: Elsevier.
Harvard
Peter Greenwald, . (1989). Journal of the National Cancer Institute. New York: Elsevier.
MLA
Peter Greenwald, . Journal of the National Cancer Institute. New York: Elsevier. 1989.