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Holy Roman Empire and formation of European system of states
| GOST | Ivonin Y. Holy Roman Empire and formation of European system of states // ISTORIYA. – 2012. – V. 3. – Issue 3 (11). URL: https://history.jes.su/s207987840000366-1-1/ |
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| MLA | Ivonin, Yuri "Holy Roman Empire and formation of European system of states." ISTORIYA. 3.3 (11) (2012). |
| APA | Ivonin Y. (2012). Holy Roman Empire and formation of European system of states. ISTORIYA. vol. 3, no. 3 (11) |