
Specification for codes for the representation of names of counties and similar areas
出版:British Standards Institution

專家解讀視頻
Nationally applicable two-letter, three-letter and four-digit codes for current, and three-letter codes for historic, names of counties and other constituent areas associated with the United Kingdom. The codes are adaptable for international use and are intended for any application, information interchange and data storage in particular.
? British Standards Institution 2013