APA

National Cancer Institute (U.S.), . (1971). Histopathology of tumors of canine alimentary tract produced by N-methyl-N-nitro-N-nitrosoguanidine, with particular reference to gastric carcinomas. [Washington, D.C: .

Chicago

National Cancer Institute (U.S.), . 1971. Histopathology of tumors of canine alimentary tract produced by N-methyl-N-nitro-N-nitrosoguanidine, with particular reference to gastric carcinomas. [Washington, D.C: .

Harvard

National Cancer Institute (U.S.), . (1971). Histopathology of tumors of canine alimentary tract produced by N-methyl-N-nitro-N-nitrosoguanidine, with particular reference to gastric carcinomas. [Washington, D.C: .

MLA

National Cancer Institute (U.S.), . Histopathology of tumors of canine alimentary tract produced by N-methyl-N-nitro-N-nitrosoguanidine, with particular reference to gastric carcinomas. [Washington, D.C: . 1971.