Annual Waste Reduction, Recycling and Composting Symposium Houston, Texas, Solid Waste Association of North America, & Annual Collection Symposium. (1997). Proccedings from SWANA's 8th Annual Waste Reduction, Recycling and Composting Symposium & 1st Annual Collection Symposium: Houston, Texas, February 24-28, 1997. SWANA.
Παραπομπή σε μορφή Chicago (17η εκδ.)Annual Waste Reduction, Recycling and Composting Symposium Houston, Texas, Solid Waste Association of North America, και Annual Collection Symposium. Proccedings from SWANA's 8th Annual Waste Reduction, Recycling and Composting Symposium & 1st Annual Collection Symposium: Houston, Texas, February 24-28, 1997. [s.l.]: SWANA, 1997.
Παραπομπή σε μορφή MLA (9th εκδ.)Annual Waste Reduction, Recycling and Composting Symposium Houston, Texas, et al. Proccedings from SWANA's 8th Annual Waste Reduction, Recycling and Composting Symposium & 1st Annual Collection Symposium: Houston, Texas, February 24-28, 1997. SWANA, 1997.