Singh, K. (2010). Natural and man made disasters. MD Publisher.
Chicago-čujuhus (17. p.)Singh, K.K. Natural and Man Made Disasters. MD Publisher, 2010.
MLA-čujuhus (9. p.)Singh, K.K. Natural and Man Made Disasters. MD Publisher, 2010.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.