Abdul Kalam, A. P. J. (2012). Indomitable spirit. Rajpal & Sons.
Cita Chicago (17th ed.)Abdul Kalam, A. P. J. Indomitable Spirit. New Delhi: Rajpal & Sons, 2012.
Cita MLA (8th ed.)Abdul Kalam, A. P. J. Indomitable Spirit. Rajpal & Sons, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.