APA

National Cancer Institute (U.S.), . (19). A lymphocyte-inhibiting factor (chalone?) extracted from thymus: immunosuppressive effects. [Washington, D.C: .

Chicago

National Cancer Institute (U.S.), . 19. A lymphocyte-inhibiting factor (chalone?) extracted from thymus: immunosuppressive effects. [Washington, D.C: .

Harvard

National Cancer Institute (U.S.), . (19). A lymphocyte-inhibiting factor (chalone?) extracted from thymus: immunosuppressive effects. [Washington, D.C: .

MLA

National Cancer Institute (U.S.), . A lymphocyte-inhibiting factor (chalone?) extracted from thymus: immunosuppressive effects. [Washington, D.C: . 19.