共 5 条
[1]
*ILL I TECHN, 1969, 24 CER B
[2]
ROSATO, 1969, MARKETS FOR PLASTICS
[3]
*STANF RES I, 1970, CHEMICAL ECONOMICS H
[4]
*US DEP COMM, 1969 STAT ABSTR US
[5]
1969, CHEMICAL WEEK 0926, P69