en
520 Astronomy
529 Chronology
fr
520 Astronomie
529 Chronologie
es
520 Astronomía
529 Cronología
sv
520 Astronomi
529 Kronologi
pt
520 Astronomia
529 Cronologia
ru
520 Астрономия
529 Хронология
zh
520 天文学
529 年代记
ar
520 علم الفلك.
529 الكرونولوجيا (التقسيم الزمنى).
af
520 Sterrekunde
529 Chronologie
no
520 Astronomi
529 Tidsregning
de
520 Astronomie
529 Chronologie
gd
520 Reul-eòlas
529 Tìm-òrdugh
Dewey Decimal Classification
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