Singh,Chanchal. (2007). Global warming and climatology. Akansha Pub. House.
Cita Chicago (17th ed.)Singh,Chanchal. Global Warming and Climatology. New Delhi, India: Akansha Pub. House, 2007.
Cita MLA (8th ed.)Singh,Chanchal. Global Warming and Climatology. Akansha Pub. House, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.