APA (7 वां संस्करण) प्रशस्ति पत्र
Cardwell, P. J. (2012). EU External Relations Law and Policy in the Post-Lisbon Era. T. M. C. Asser Press. https://doi.org/10.1007/978-90-6704-823-1
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Cardwell, Paul James. EU External Relations Law and Policy in the Post-Lisbon Era. The Hague, The Netherlands: T. M. C. Asser Press, 2012. https://doi.org/10.1007/978-90-6704-823-1.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Cardwell, Paul James. EU External Relations Law and Policy in the Post-Lisbon Era. T. M. C. Asser Press, 2012. https://doi.org/10.1007/978-90-6704-823-1.
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