303.48 Causes of change
303.483 Development of science and technology
303.4832 Transportation 303.4833 Communication 303.4834 Computers de
303.48 Ursachen des Wandels
303.483 Entwicklung von Naturwissenschaft und Technik
303.4832 Verkehr 303.4833 Kommunikation 303.4834 Computer
Dewey Decimal Classification
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