Green, N., Hartley, T. C., & Usher, J. A. (1991). The legal foundations of the single European market. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGreen, Nicholas, Trevor C. Hartley, और John A. Usher. The Legal Foundations of the Single European Market. Oxford: Oxford University Press, 1991.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGreen, Nicholas, et al. The Legal Foundations of the Single European Market. Oxford University Press, 1991.
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