Sombart, N. Archivmaterialien zu Nicolaus Sombart, 1923-2008.
Tohutoru Kātū Chicago (17th ed.)Sombart, Nicolaus. Archivmaterialien Zu Nicolaus Sombart, 1923-2008.
Tohutoro MLA (9th ed.)Sombart, Nicolaus. Archivmaterialien Zu Nicolaus Sombart, 1923-2008.
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