Formby, J. (1965). An introduction to the mathematical formulation of self-organizing systems. N.J., Van Nostrand.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFormby, John. An Introduction to the Mathematical Formulation of Self-organizing Systems. Princeton: N.J., Van Nostrand, 1965.
एमएलए (9वां संस्करण) प्रशस्ति पत्रFormby, John. An Introduction to the Mathematical Formulation of Self-organizing Systems. N.J., Van Nostrand, 1965.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.