APA
Barnett S. Kramer, . (1995). Journal of the National Cancer Institute. U.S.A: The National Cancer Institute.
Chicago
Barnett S. Kramer, . 1995. Journal of the National Cancer Institute. U.S.A: The National Cancer Institute.
Harvard
Barnett S. Kramer, . (1995). Journal of the National Cancer Institute. U.S.A: The National Cancer Institute.
MLA
Barnett S. Kramer, . Journal of the National Cancer Institute. U.S.A: The National Cancer Institute. 1995.