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4 résultats pour : hours of the day

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Diagram explaining the changing seasons and day and night as the Earth orbits the sun
ARP23A16_124

Diagram explaining the changing seasons and day an...

Diagram explaining the differing lengths of the day
ARP23A16_123

Diagram explaining the differing lengths of the da...

The Wage-Hour Administration, 1938
ARP16A00_441

The Wage-Hour Administration, 1938

Anthony Ashley Cooper
ARP07102_390006474

Anthony Ashley Cooper