1
Published 1971
Subjects: ...Rotational molding of plastics -- Congresses....
2
Published 1982
Subjects: ...Injection molding of plastics -- Congresses....
3
Published 1990
Subjects: ...Plastics in packaging -- Congresses...
4
Published 1990
Subjects: ...Plastics in packaging -- Congresses...
5
Published 1990
Subjects: ...Plastics in packaging -- Congresses....
6
Published 1990
Subjects: ...Plastic industry and trade -- United States Congresses....
7
Published 1991
Subjects: ...Plasticity -- Congresses....