Nuffield Foundation. Secondary Science Project. (1970). Nuffield secondary science: Teacher's guide. Nuffield Foundation.
Chicago-viite (17. p.)Nuffield Foundation. Secondary Science Project. Nuffield Secondary Science: Teacher's Guide. London: Nuffield Foundation, 1970.
MLA-viite (9. p.)Nuffield Foundation. Secondary Science Project. Nuffield Secondary Science: Teacher's Guide. Nuffield Foundation, 1970.
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