
doi: 10.1038/227750a0
Nuffield Combined Science Pack I Activities—Book 1: Pp. 72; Book 2: Pp. 66; Book 3: Pp. 40; Book 4: Pp. 47; Book 5: Pp. 36. Reference Sheets: Pp. 27. Teachers' Guide 1 (Sections 1–5): Pp. xxiii + 411. Teachers' Guide 3: Pp. vii + 266. (Longman: London; Penguin: Harmondsworth, Middlesex, 1970.) n.p.
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 0 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
