Matthews, P. (1996). A global atlas of wastewater sludge and biosolids use and disposal. Iawq.
Cita Chicago (17th ed.)Matthews, Peter. A Global Atlas of Wastewater Sludge and Biosolids Use and Disposal. Londres: Iawq, 1996.
Cita MLA (9th ed.)Matthews, Peter. A Global Atlas of Wastewater Sludge and Biosolids Use and Disposal. Iawq, 1996.
Atenció: Aquestes cites poden no estar 100% correctes.