Abd Razak, D. (2010). A blessing for humanity.
Cita Chicago (17th ed.)Abd Razak, Dzulkifli. A Blessing for Humanity. 2010.
Cita MLA (9th ed.)Abd Razak, Dzulkifli. A Blessing for Humanity. 2010.
Atenció: Aquestes cites poden no estar 100% correctes.