APA (7th ed.) Citation

Schmidt. Ibn Khaldun: Historian, sociologist and philosopher. Universal Books.

Chicago Style (17th ed.) Citation

Schmidt. Ibn Khaldun: Historian, Sociologist and Philosopher. Pakistan: Universal Books.

MLA (9th ed.) Citation

Schmidt. Ibn Khaldun: Historian, Sociologist and Philosopher. Universal Books.

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