Uppsala (Sweden). Universitet. Faculty of Science & Thun, J. (1976). Faculty of Science at Uppsala University: Mathematics and physics. Almqvist & Wiksell International.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUppsala (Sweden). Universitet. Faculty of Science और John-Erik Thun. Faculty of Science at Uppsala University: Mathematics and Physics. Stockholm: Almqvist & Wiksell International, 1976.
एमएलए (8वां संस्करण) प्रशस्ति पत्रUppsala (Sweden). Universitet. Faculty of Science और John-Erik Thun. Faculty of Science at Uppsala University: Mathematics and Physics. Almqvist & Wiksell International, 1976.
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