APA
Peter Greenwald, . (1983). Journal of the National Cancer Institute. U.S.A: National Institutes of Health.
Chicago
Peter Greenwald, . 1983. Journal of the National Cancer Institute. U.S.A: National Institutes of Health.
Harvard
Peter Greenwald, . (1983). Journal of the National Cancer Institute. U.S.A: National Institutes of Health.
MLA
Peter Greenwald, . Journal of the National Cancer Institute. U.S.A: National Institutes of Health. 1983.