APA

Centers for Disease Control and Prevention C., .On infectious diseases in the United States: 1900-99. : .

Chicago

Centers for Disease Control and Prevention Cdc, .On infectious diseases in the United States: 1900-99. : .

Harvard

Centers for Disease Control and Prevention C., .On infectious diseases in the United States: 1900-99. : .

MLA

Centers for Disease Control and Prevention Cdc, .: . .