AIR FORCE FIPS-PUB-55-3-1994 方针:美国指定居住区、主要县区和其他当地实体,波多黎各以及边远区域的代码
GUIDELINE: CODES FOR NAMED POPULATED PLACES, PRIMARY COUNTY DIVISIONS, AND OTHER LOCATIONAL ENTITIES OF THE UNITED STATES, PUERTO RICO, AND THE OUTLYING AREAS
The files of Federal Information Processing Standards Publication (FIPS PUB) 55 provide a unique code for each listed populated place, primary county division, and other locational entity in the 50 States, the
District of Columbia, Puerto Rico and the Ou