Não informado. (1985). WASTE TREATMENT TECHNOLOGY NEWS. Business Communications.
Chicago (17e ed.) BronvermeldingNão informado. WASTE TREATMENT TECHNOLOGY NEWS. Stanford, Conn: Business Communications, 1985.
MLA (8e ed.) BronvermeldingNão informado. WASTE TREATMENT TECHNOLOGY NEWS. Business Communications, 1985.
Let op: Deze citaties zijn niet altijd 100% accuraat.