APA

National Cancer Institute (U.S.), . (1971). Foreign body tumorrigenesis [sic], timing and location of preneoplatic [sic] events. [Washington, D.C: .

Chicago

National Cancer Institute (U.S.), . 1971. Foreign body tumorrigenesis [sic], timing and location of preneoplatic [sic] events. [Washington, D.C: .

Harvard

National Cancer Institute (U.S.), . (1971). Foreign body tumorrigenesis [sic], timing and location of preneoplatic [sic] events. [Washington, D.C: .

MLA

National Cancer Institute (U.S.), . Foreign body tumorrigenesis [sic], timing and location of preneoplatic [sic] events. [Washington, D.C: . 1971.