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MLA
Helmolt, H.F (Contributor). Portrait of Hardenburg, Prince Karl August von (1750-1822) - University of Texas Libraries Collections. 1902. https://collections.lib.utexas.edu/catalog/utlmisc:78ec3c8e-dcd4-4c71-b4c6-bac3348b19bcAPA
Helmolt, H.F (Contributor). (1902). Portrait of Hardenburg, Prince Karl August von (1750-1822). Retrieved June 19, 2026, from https://collections.lib.utexas.edu/catalog/utlmisc:78ec3c8e-dcd4-4c71-b4c6-bac3348b19bcChicago
Helmolt, H.F (Contributor). Portrait of Hardenburg, Prince Karl August von (1750-1822). 1902. "Portrait of Hardenburg, Prince Karl August von (1750-1822) – Collections". University of Texas Libraries Collections. <https://collections.lib.utexas.edu/catalog/utlmisc:78ec3c8e-dcd4-4c71-b4c6-bac3348b19bc> (19-June-2026).Note that these citations have been automatically generated, please verify that citation is correct and contains all necessary information.