en
540
Chemistry
542
Techniques, equipment & materials
fr
540
Chimie
542
Techniques, équipement et matériel
es
540
Química
542
Técnicas, equipo y materiales
sv
540
Kemi
542
Tekniker, utrustning & material
pt
540
Química
542
Técnicas, equipamentos e materiais
ru
540
Химия
542
Методы, оборудование и материалы
zh
540
化学
542
技术, 设备 & 材料
ar
540
الكيمياء.
542
الاساليب والتجهيزات والمواد.
af
540
Chemie
542
Tegnieke, toerusting & benodigdhede
no
540
Kjemi
542
Teknikker, utstyr og materialer
de
540
Chemie
542
Techniken, Ausstattung, Materialien
gd
540
Ceimigeachd
542
Dòighean, uidheam & stuthan
Dewey Decimal Classification
This work is licensed under a
Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 Unported License
by
OCLC Online Computer Library Center, Inc.
Permissions beyond the scope of this license may be available at
here
. All copyright rights in the Dewey Decimal Classification system are owned by OCLC. Dewey, Dewey Decimal Classification, DDC, OCLC and WebDewey are registered trademarks of OCLC.