共 50 条
- [41] FACTS AND FIGURES FOR CHEMICAL R-AND-D [J]. CHEMICAL & ENGINEERING NEWS, 1995, 73 (35) : 34 - 36
- [42] FACTS AND FIGURES FOR CHEMICAL R-AND-D [J]. CHEMICAL & ENGINEERING NEWS, 1980, 58 (30) : 37 - &
- [45] FACTS AND FIGURES FOR CHEMICAL R-AND-D [J]. CHEMICAL & ENGINEERING NEWS, 1982, 60 (30) : 38 - &
- [48] FACTS AND FIGURES FOR CHEMICAL R-AND-D [J]. CHEMICAL & ENGINEERING NEWS, 1985, 63 (29) : 28 - &