Não informado. (1971). Brucellosis surveillance. Center for Disease Control.
Chicago (17e ed.) BronvermeldingNão informado. Brucellosis Surveillance. Atlanta, Ga: Center for Disease Control, 1971.
MLA (8e ed.) BronvermeldingNão informado. Brucellosis Surveillance. Center for Disease Control, 1971.
Let op: Deze citaties zijn niet altijd 100% accuraat.