APA
John R. Heller, . (1954). Journal of the National Cancer Institute. U.S.A: National Institutes of Health.
Chicago
John R. Heller, . 1954. Journal of the National Cancer Institute. U.S.A: National Institutes of Health.
Harvard
John R. Heller, . (1954). Journal of the National Cancer Institute. U.S.A: National Institutes of Health.
MLA
John R. Heller, . Journal of the National Cancer Institute. U.S.A: National Institutes of Health. 1954.