APA

National Cancer Institute (U.S.), . (1974). Carcinogenicity of N-methyl-N-nitrosourea: possible rile [sic] fo [sic] excision repair on 0 methylguanine from DNA. [Washington, D.C: .

Chicago

National Cancer Institute (U.S.), . 1974. Carcinogenicity of N-methyl-N-nitrosourea: possible rile [sic] fo [sic] excision repair on 0 methylguanine from DNA. [Washington, D.C: .

Harvard

National Cancer Institute (U.S.), . (1974). Carcinogenicity of N-methyl-N-nitrosourea: possible rile [sic] fo [sic] excision repair on 0 methylguanine from DNA. [Washington, D.C: .

MLA

National Cancer Institute (U.S.), . Carcinogenicity of N-methyl-N-nitrosourea: possible rile [sic] fo [sic] excision repair on 0 methylguanine from DNA. [Washington, D.C: . 1974.