APA

National Cancer Institute (U.S.), . (1972). Comparison of the transforming effect of benzo[a]pyrene in mammalian cell lines in vitro. [Washington, D.C: .

Chicago

National Cancer Institute (U.S.), . 1972. Comparison of the transforming effect of benzo[a]pyrene in mammalian cell lines in vitro. [Washington, D.C: .

Harvard

National Cancer Institute (U.S.), . (1972). Comparison of the transforming effect of benzo[a]pyrene in mammalian cell lines in vitro. [Washington, D.C: .

MLA

National Cancer Institute (U.S.), . Comparison of the transforming effect of benzo[a]pyrene in mammalian cell lines in vitro. [Washington, D.C: . 1972.