Nuffield Foundation. Secondary Science Project. (1971). Nuffield secondary science: Theme 4, harnessing energy. Nuffield Foundation.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNuffield Foundation. Secondary Science Project. Nuffield Secondary Science: Theme 4, Harnessing Energy. London: Nuffield Foundation, 1971.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNuffield Foundation. Secondary Science Project. Nuffield Secondary Science: Theme 4, Harnessing Energy. Nuffield Foundation, 1971.
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