APA (7th ed.) Citation

Nursi, B. S. (2017). The key to belief. Sozler Publications.

Chicago Style (17th ed.) Citation

Nursi, Badiuzzaman Said. The Key to Belief. Sozler Publications, 2017.

MLA (8th ed.) Citation

Nursi, Badiuzzaman Said. The Key to Belief. Sozler Publications, 2017.

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