Looijen, R. C. (1998). Holism and reductionism in biology and ecology: The mutual dependence of higher and lower level research programmes. s.n.].
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLooijen, Richard Christiaan. Holism and Reductionism in Biology and Ecology: The Mutual Dependence of Higher and Lower Level Research Programmes. [S.l.: s.n.], 1998.
एमएलए (8वां संस्करण) प्रशस्ति पत्रLooijen, Richard Christiaan. Holism and Reductionism in Biology and Ecology: The Mutual Dependence of Higher and Lower Level Research Programmes. s.n.], 1998.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.