APA
Barnett S. Kramer, . (61999). Journal of the National Cancer Institute. London: Oxford University Press.
Chicago
Barnett S. Kramer, . 61999. Journal of the National Cancer Institute. London: Oxford University Press.
Harvard
Barnett S. Kramer, . (61999). Journal of the National Cancer Institute. London: Oxford University Press.
MLA
Barnett S. Kramer, . Journal of the National Cancer Institute. London: Oxford University Press. 61999.