Não informado. (2001). Beach and pool and swimming. Hoffman-Harris.
Chicago (17e ed.) BronvermeldingNão informado. Beach and Pool and Swimming. New York: Hoffman-Harris, 2001.
MLA (8e ed.) BronvermeldingNão informado. Beach and Pool and Swimming. Hoffman-Harris, 2001.
Let op: Deze citaties zijn niet altijd 100% accuraat.