00290nam a2200109Ia 450000500170000000800410001708200170005810000190007524500270009426000490012130000100017020260205050922.0260111s9999||||xx |||||||||||||| ||und||  a668.4  At33P  aAthalye, A. S. 0aProcessing of plastics  aBombaybPopular plastics and packagingc1990  a126p.