Macfadyen, D., Davies, M. D. V., Carr, M. N., & Burley, J. (2019). Eric Drummond and his Legacies: The League of Nations and the Beginnings of Global Governance (1st ed. 2019.). Springer International Publishing : Imprint: Palgrave Macmillan. https://doi.org/10.1007/978-3-030-04732-0
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Macfadyen, David, Michael D. V. Davies, Marilyn Norah Carr, و John Burley. Eric Drummond and His Legacies: The League of Nations and the Beginnings of Global Governance. 1st ed. 2019. Cham: Springer International Publishing : Imprint: Palgrave Macmillan, 2019. https://doi.org/10.1007/978-3-030-04732-0.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Macfadyen, David, et al. Eric Drummond and His Legacies: The League of Nations and the Beginnings of Global Governance. 1st ed. 2019. Springer International Publishing : Imprint: Palgrave Macmillan, 2019. https://doi.org/10.1007/978-3-030-04732-0.