APA (7th ed.) Citation

Spies, O. (1954). Fritz Krenkow. Der Islam, 31(2/3), 228-236. doi:10.1515/islm.1954.31.2-3.228

Chicago Style (17th ed.) Citation

Spies, Otto. "Fritz Krenkow." Der Islam 31, no. 2/3 (1954): 228-236, https://doi.org/10.1515/islm.1954.31.2-3.228.

MLA (8th ed.) Citation

Spies, Otto. "Fritz Krenkow." Der Islam, vol. 31, no. 2/3, 1954, pp. 228-236, https://doi.org/10.1515/islm.1954.31.2-3.228.

Warning: These citations may not always be 100% accurate.