APA (7th ed.) Citation

Kremer, A. F. v. (1977). The Orient under the caliphs. Porcupine Press.

Chicago Style (17th ed.) Citation

Kremer, Alfred Freiherr von. The Orient Under the Caliphs. Philadelphia: Porcupine Press, 1977.

MLA (9th ed.) Citation

Kremer, Alfred Freiherr von. The Orient Under the Caliphs. Porcupine Press, 1977.

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