APA (7th ed.) Citation

Helfand, L., & Banerjee, S. (2011). Nelson Mandela: The unconquerable soul. Campfire.

Chicago Style (17th ed.) Citation

Helfand, Lewis, and Sankha Banerjee. Nelson Mandela: The Unconquerable Soul. New Delhi, India: Campfire, 2011.

MLA (8th ed.) Citation

Helfand, Lewis, and Sankha Banerjee. Nelson Mandela: The Unconquerable Soul. Campfire, 2011.

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