1. Cornell DD, In: Rader CP, Baldwin SD, Cornell DD, Sadler GD, Stockel RF, editors. Plastics, rubber, and paper recycling: a pragmatic approach. Chapter 6, ACS symposium series 609. American Chemical Society; 1995.
2. Mackey G, In: Rader CP, Baldwin SD, Cornell DD, Sadler GD, Stockel RF, editors. Plastics, rubber, and paper recycling: a pragmatic approach. Chapter 14, ACS symposium series 609. American Chemical Society; 1995.
3. Rubber world;O’Connor,1982
4. Marking of plastic parts;SAE J 1344,1991
5. Payne MT, In: Rader CP, Baldwin SD, Cornell DD, Sadler GD, Stockel RF, editors. Plastics, rubber, and paper recycling: a pragmatic approach. Chapter 6, ACS symposium series 609. American Chemical Society; 1995.