APA

National Cancer Institute (U.S.), . (1973). Histologic variation among poorly diffrentated [sic] invasive catcinomas [sic] of the human uterine cervix. [Washington, D.C: .

Chicago

National Cancer Institute (U.S.), . 1973. Histologic variation among poorly diffrentated [sic] invasive catcinomas [sic] of the human uterine cervix. [Washington, D.C: .

Harvard

National Cancer Institute (U.S.), . (1973). Histologic variation among poorly diffrentated [sic] invasive catcinomas [sic] of the human uterine cervix. [Washington, D.C: .

MLA

National Cancer Institute (U.S.), . Histologic variation among poorly diffrentated [sic] invasive catcinomas [sic] of the human uterine cervix. [Washington, D.C: . 1973.