APA

National Cancer Institute (U.S.), . (1973). A new group of oncogenic viruses: reticuloendotheliosis chick syncytial, duck infectious anemia, and spleen necrosis viruses. [Washington, D.C: .

Chicago

National Cancer Institute (U.S.), . 1973. A new group of oncogenic viruses: reticuloendotheliosis chick syncytial, duck infectious anemia, and spleen necrosis viruses. [Washington, D.C: .

Harvard

National Cancer Institute (U.S.), . (1973). A new group of oncogenic viruses: reticuloendotheliosis chick syncytial, duck infectious anemia, and spleen necrosis viruses. [Washington, D.C: .

MLA

National Cancer Institute (U.S.), . A new group of oncogenic viruses: reticuloendotheliosis chick syncytial, duck infectious anemia, and spleen necrosis viruses. [Washington, D.C: . 1973.