APA

National Cancer Institute (U.S.), . (1973). Virus particles in early mouse embryos. [Washington, D.C: .

Chicago

National Cancer Institute (U.S.), . 1973. Virus particles in early mouse embryos. [Washington, D.C: .

Harvard

National Cancer Institute (U.S.), . (1973). Virus particles in early mouse embryos. [Washington, D.C: .

MLA

National Cancer Institute (U.S.), . Virus particles in early mouse embryos. [Washington, D.C: . 1973.