oclc.org
Dewey Decimal Classification — OCLC
The world's most widely used library classification system, organizing knowledge into ten main classes that span the world of knowledge.
4 results
who.int
International Classification of Diseases (ICD) — WHO
ICD is the foundation for identifying health trends and statistics globally, and the international standard for reporting diseases and health conditions.
census.gov
North American Industry Classification System — Census Bureau
The standard used by Federal statistical agencies in classifying business establishments for the purpose of collecting, analyzing, and publishing statistical data related to the U.S. business economy.
ethnologue.com
Ethnologue: Languages of the World
An annual reference work cataloging the world's known living languages, with maps, speaker counts, and classification.