en
520 Astronomy
522 Techniques, equipment & materials
fr
520 Astronomie
522 Techniques, équipement et matériel
es
520 Astronomía
522 Técnicas, equipo y materiales
sv
520 Astronomi
522 Tekniker, utrustning & material
pt
520 Astronomia
522 Técnicas, equipamentos e materiais
ru
520 Астрономия
522 Методы, оборудование и материалы
zh
520 天文学
522 技术, 设备 & 材料
ar
520 علم الفلك.
522 الأساليب والتجهيزات والمواد.
af
520 Sterrekunde
522 Tegnieke, toerusting & benodigdhede
no
520 Astronomi
522 Teknikker, utstyr og materialer
de
520 Astronomie
522 Techniken, Ausstattung, Materialien
gd
520 Reul-eòlas
522 Dòighean, uidheam & stuthan
Dewey Decimal Classification
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