Gallo, C. S., & Rossi, L. F. (2009). Recycling: New research. Nova Science Pub.
Cita Chicago (17th ed.)Gallo, Christian S., i Lorenzo F. Rossi. Recycling: New Research. New York: Nova Science Pub, 2009.
Cita MLA (9th ed.)Gallo, Christian S., i Lorenzo F. Rossi. Recycling: New Research. Nova Science Pub, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.