THE BOOK PARADISE. (2011). AWESOME FACTS ABOUT INVENTORS AND INVENTIONS. THE BOOK PARADISE.
Čikaški stil citiranja (17. izdanje)THE BOOK PARADISE. AWESOME FACTS ABOUT INVENTORS AND INVENTIONS. THE BOOK PARADISE, 2011.
MLA način citiranja (9. izdanje)THE BOOK PARADISE. AWESOME FACTS ABOUT INVENTORS AND INVENTIONS. THE BOOK PARADISE, 2011.
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