Silveira, A., Canotilho, M., & Froufe, P. M. (2013). Citizenship and solidarity in the European Union: From the charter of fundamental rights to the crisis, the state of the art. P.I.E. Peter Lang.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Silveira, Alessandra, Mariana Canotilho, و Pedro Madeira Froufe. Citizenship and Solidarity in the European Union: From the Charter of Fundamental Rights to the Crisis, the State of the Art. Brussels, Belgium: P.I.E. Peter Lang, 2013.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Silveira, Alessandra, et al. Citizenship and Solidarity in the European Union: From the Charter of Fundamental Rights to the Crisis, the State of the Art. P.I.E. Peter Lang, 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.