APA

National Cancer Institute (U.S.), . (1970). Sequential morphological chnages [sic] in N-methyl-N-nitro-N-nitrosoguanidene carcinogenuesis [sic] in glandular stomach of rats. [Washington, D.C: .

Chicago

National Cancer Institute (U.S.), . 1970. Sequential morphological chnages [sic] in N-methyl-N-nitro-N-nitrosoguanidene carcinogenuesis [sic] in glandular stomach of rats. [Washington, D.C: .

Harvard

National Cancer Institute (U.S.), . (1970). Sequential morphological chnages [sic] in N-methyl-N-nitro-N-nitrosoguanidene carcinogenuesis [sic] in glandular stomach of rats. [Washington, D.C: .

MLA

National Cancer Institute (U.S.), . Sequential morphological chnages [sic] in N-methyl-N-nitro-N-nitrosoguanidene carcinogenuesis [sic] in glandular stomach of rats. [Washington, D.C: . 1970.