Zip+4® codes, why they add up for business mailers
Contributors: United States Postal Service
Series: Notice -- 186; Notice (United States Postal Service) -- 186
Publisher: U.S. Postal Service
Published: 1984
Place of publication: [Washington, D.C.?]
Language: eng
Subjects: United States Postal Service; Zip codes
Other titles: Zip plus four, why they add up for business mailers
Notes: "September 1984."