Não informado. Communicable Disease Morbidity Statistics. State Board of Health, Public Health Statistics Section.
Chicago (17e ed.) BronvermeldingNão informado. Communicable Disease Morbidity Statistics. Raleigh, NC: State Board of Health, Public Health Statistics Section.
MLA (8e ed.) BronvermeldingNão informado. Communicable Disease Morbidity Statistics. State Board of Health, Public Health Statistics Section.
Let op: Deze citaties zijn niet altijd 100% accuraat.