Society of the Plastics Industry

Sources

• Hall-Hoag Collection of Dissenting and Extremist Printed Propaganda
• VIAF: 151024940
• LCNAF: LC|n 81038524
• Wikipedia: http://en.wikipedia.org/wiki/Society_of_the_Plastics_Industry
• Web: http://www.plasticsindustry.org/aboutspi/?navItemNumber=1009
• DbPedia: http://dbpedia.org/page/Society_of_the_Plastics_Industry