APA (7th ed.) Citation

Al-Qarni & Ibn Muhammad. (2002). Don't be sad. International Islamic Pub. House.

Chicago Style (17th ed.) Citation

Al-Qarni and Ibn Muhammad. Don't Be Sad. Riyadh: International Islamic Pub. House, 2002.

MLA (8th ed.) Citation

Al-Qarni and Ibn Muhammad. Don't Be Sad. International Islamic Pub. House, 2002.

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