APA

National Cancer Institute (U.S.), . (1975). Induction of carcinoma of the large intestine in guinea pigs by intrarectal instilla [sic] of N-methyl-N-nitrosourea. [Washington, D.C: .

Chicago

National Cancer Institute (U.S.), . 1975. Induction of carcinoma of the large intestine in guinea pigs by intrarectal instilla [sic] of N-methyl-N-nitrosourea. [Washington, D.C: .

Harvard

National Cancer Institute (U.S.), . (1975). Induction of carcinoma of the large intestine in guinea pigs by intrarectal instilla [sic] of N-methyl-N-nitrosourea. [Washington, D.C: .

MLA

National Cancer Institute (U.S.), . Induction of carcinoma of the large intestine in guinea pigs by intrarectal instilla [sic] of N-methyl-N-nitrosourea. [Washington, D.C: . 1975.