APA

National Cancer Institute (U.S.), . (1970). Separation of cells drom [sic] mast cell tumor on density gradients of colloidal silica. [Washington, D.C: .

Chicago

National Cancer Institute (U.S.), . 1970. Separation of cells drom [sic] mast cell tumor on density gradients of colloidal silica. [Washington, D.C: .

Harvard

National Cancer Institute (U.S.), . (1970). Separation of cells drom [sic] mast cell tumor on density gradients of colloidal silica. [Washington, D.C: .

MLA

National Cancer Institute (U.S.), . Separation of cells drom [sic] mast cell tumor on density gradients of colloidal silica. [Washington, D.C: . 1970.