Unknown. (2006). Chemical Engineering Environmental Protection and Biotechnol. USA.
Citazione stile Chigago Style (17a edizione)Unknown. Chemical Engineering Environmental Protection and Biotechnol. CRC Press: USA, 2006.
Citatione MLA (9a ed.)Unknown. Chemical Engineering Environmental Protection and Biotechnol. USA, 2006.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.