Zip code business patterns  [electronic resource]. 
 Zip code business patterns (CD-ROM) 

 - Washington, DC  Bureauof the Census  199 - 
 - 1 Computer laser optical discs  4 3/4 in. 
 - 
<br/><br/> Business patterns arranged by Zip Code.  Description based on: 1994; title from title screen.  Hierarchical file structure. 
<br/><br/><br/>Disc characteristics: CD-ROM. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Industrial location--Statistics--Periodicals.--United States<br/>Zip code--Periodicals.--United States<br/>Industrial statistics--Periodicals.--United States