Nuffield Foundation. Science Teaching Project. (1971). Students' book unit 4: Physics, waves, & oscillations. Nuffield Advanced Science/Longman.
Chicago-viite (17. p.)Nuffield Foundation. Science Teaching Project. Students' Book Unit 4: Physics, Waves, & Oscillations. London: Nuffield Advanced Science/Longman, 1971.
MLA-viite (9. p.)Nuffield Foundation. Science Teaching Project. Students' Book Unit 4: Physics, Waves, & Oscillations. Nuffield Advanced Science/Longman, 1971.
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