Não informado. (2001). Ethics, Place and Environment. Carfax Publishing.
Chicago (17e ed.) BronvermeldingNão informado. Ethics, Place and Environment. Abingdon, Inglaterra: Carfax Publishing, 2001.
MLA (8e ed.) BronvermeldingNão informado. Ethics, Place and Environment. Carfax Publishing, 2001.
Let op: Deze citaties zijn niet altijd 100% accuraat.