APA
Robert E. Wittes, . (1988). Journal of the National Cancer Institute. London: Oxford University Press.
Chicago
Robert E. Wittes, . 1988. Journal of the National Cancer Institute. London: Oxford University Press.
Harvard
Robert E. Wittes, . (1988). Journal of the National Cancer Institute. London: Oxford University Press.
MLA
Robert E. Wittes, . Journal of the National Cancer Institute. London: Oxford University Press. 1988.