APA

National Cancer Institute (U.S.), . (19). Review of leukocytes. [Washington, D.C: .

Chicago

National Cancer Institute (U.S.), . 19. Review of leukocytes. [Washington, D.C: .

Harvard

National Cancer Institute (U.S.), . (19). Review of leukocytes. [Washington, D.C: .

MLA

National Cancer Institute (U.S.), . Review of leukocytes. [Washington, D.C: . 19.