Não informado. (1999). Annual report on Ground Water in Arizona. Arizona State Land Department.
Chicago (17e ed.) BronvermeldingNão informado. Annual Report on Ground Water in Arizona. Phoenix, Ariz: Arizona State Land Department, 1999.
MLA (8e ed.) BronvermeldingNão informado. Annual Report on Ground Water in Arizona. Arizona State Land Department, 1999.
Let op: Deze citaties zijn niet altijd 100% accuraat.