Extruded plastics
by Mary F. Welch, Esther K. Palevsky, Diana E. Kole
Plastics industry and tradePlastics machinery industryDirectoriesPlasticsExtrusionMarket surveys
Writing a summary for young readers…
For young readers
Book data: Open Library
by Mary F. Welch, Esther K. Palevsky, Diana E. Kole
Book data: Open Library