629.4 Astronautics
629.45 Manned space flight
629.450092 Astronauts, . . .
629.4 Du hành vũ trụ
629.45 Chuyến bay vũ trụ có người
629.450092 Nhà du hành vũ trụ, . . .
629.4 Astronautica
629.45 Volo spaziale con equipaggio
629.450092 Astronauti, . . .
Dewey Decimal Classification
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