Frisch, K. C., & Klempner, D. P. (2001). Recycling of polyurethanes. Technomic Publishing Company.
Čikaški stil citiranjaFrisch, Kurt C., i Daniel Prentice Klempner. Recycling of Polyurethanes. Lancaster: Technomic Publishing Company, 2001.
MLA način citiranjaFrisch, Kurt C., i Daniel Prentice Klempner. Recycling of Polyurethanes. Technomic Publishing Company, 2001.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.