APA (7th ed.) Citation

Lewis, B. (1955). The Concept of an Islamic Republic 1. Die Welt des Islams, 4(1), 1-9. doi:10.1163/157006055X00308

Chicago Style (17th ed.) Citation

Lewis, Bernard. "The Concept of an Islamic Republic 1." Die Welt Des Islams 4, no. 1 (1955): 1-9, https://doi.org/10.1163/157006055X00308.

MLA (9th ed.) Citation

Lewis, Bernard. "The Concept of an Islamic Republic 1." Die Welt Des Islams, vol. 4, no. 1, 1955, pp. 1-9, https://doi.org/10.1163/157006055X00308.