Conversion to automated mail processing should continue; nine-digit zip code should be adopted if conditions are met
Subtitle: report to the Congress
By: by the Comptroller General of the United States
Publisher: U.S. General Accounting Office
Published: 1982
Place of publication: Washington, D.C
Language: eng
Number of pages: 189
Subjects: United States Postal Service; Postal service -- United States; Zip codes
Notes: Cover title

"January 6, 1983."

"GAO/GGD-83-24."

"B-206332"--Prelim. p