Spuler, A. Archivmaterialien zu Arnold Spuler, 1869-1937.
Tohutoru Kātū Chicago (17th ed.)Spuler, Arnold. Archivmaterialien Zu Arnold Spuler, 1869-1937.
Tohutoro MLA (9th ed.)Spuler, Arnold. Archivmaterialien Zu Arnold Spuler, 1869-1937.
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