Harris, N. (2009). Rourke's World of Science ENCYCLOPEDIA: Volume 9 - Technology. Rourke Publishing.
Čikaški stil citiranja (17. izdanje)Harris, Nancy. Rourke's World of Science ENCYCLOPEDIA: Volume 9 - Technology. Rourke Publishing, 2009.
MLA način citiranja (8. izdanje)Harris, Nancy. Rourke's World of Science ENCYCLOPEDIA: Volume 9 - Technology. Rourke Publishing, 2009.
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