APA

National Cancer Institute (U.S.), . (1974). Alteration of skin in gross [sic] leukemia: V, refutation of virus involvment [sic]. [Washington, D.C: .

Chicago

National Cancer Institute (U.S.), . 1974. Alteration of skin in gross [sic] leukemia: V, refutation of virus involvment [sic]. [Washington, D.C: .

Harvard

National Cancer Institute (U.S.), . (1974). Alteration of skin in gross [sic] leukemia: V, refutation of virus involvment [sic]. [Washington, D.C: .

MLA

National Cancer Institute (U.S.), . Alteration of skin in gross [sic] leukemia: V, refutation of virus involvment [sic]. [Washington, D.C: . 1974.