Dhillon,Nellie. (2005). Who Am I? 100 Historic inventions and discoveries of the World (NA.). Wisdom Tree.
Čikaški stil citiranja (17. izdanje)Dhillon,Nellie. Who Am I? 100 Historic Inventions and Discoveries of the World. NA. New Delhi: Wisdom Tree, 2005.
MLA način citiranja (9. izdanje)Dhillon,Nellie. Who Am I? 100 Historic Inventions and Discoveries of the World. NA. Wisdom Tree, 2005.
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