Não informado. (2008). Report of the Commissioner of Health of Porto Rico. Bureau of Insular Affairs.
Chicago (17e ed.) BronvermeldingNão informado. Report of the Commissioner of Health of Porto Rico. Washington: Bureau of Insular Affairs, 2008.
MLA (8e ed.) BronvermeldingNão informado. Report of the Commissioner of Health of Porto Rico. Bureau of Insular Affairs, 2008.
Let op: Deze citaties zijn niet altijd 100% accuraat.