(1998). Waste management concepts Vol.5. Prentice-Hall.
Cita Chicago (17th ed.)Waste Management Concepts Vol.5. New Jersey: Prentice-Hall, 1998.
Cita MLA (9th ed.)Waste Management Concepts Vol.5. Prentice-Hall, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.