Gibb, H. A. R. (1955). The Evolution of Government in Early Islam. Studia Islamica, 4, 5-17. doi:10.2307/1595048
Chicago Style (17th ed.) CitationGibb, Hamilton Alexander Rosskeen. "The Evolution of Government in Early Islam." Studia Islamica 4 (1955): 5-17, https://doi.org/10.2307/1595048.
MLA (8th ed.) CitationGibb, Hamilton Alexander Rosskeen. "The Evolution of Government in Early Islam." Studia Islamica, vol. 4, 1955, pp. 5-17, https://doi.org/10.2307/1595048.
Warning: These citations may not always be 100% accurate.