机构:
Smithsonian Inst, Natl Air & Space Museum, Hist Astron, Washington, DC 20560 USASmithsonian Inst, Natl Air & Space Museum, Hist Astron, Washington, DC 20560 USA
机构:
Smithsonian Inst, Natl Air & Space Museum, Hist Astron, Washington, DC 20560 USASmithsonian Inst, Natl Air & Space Museum, Hist Astron, Washington, DC 20560 USA