http://dewey.info/scheme/edition/e23/ en
069 Museology (Museum science)
069.1 Museum services to patrons
069.10846 Older people--museum services 069.1087 People with disabilities and illnesses, gifted people 069.13 Circulation services 069.15 Instruction services 069.16 Recreational services 069.17 Special services to people with disabilities
Dewey Decimal Classification
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