When speed and cost count
Subtitle: I-SAL, international surface air lift : a new Postal Service program for publications and advertising mail.
Series: Notice -- 171.; Notice (United States Postal Service) -- 171.
Publisher: U.S. Postal Service
Published: 1983
Place of publication: [Washington, D.C.?]
Language: eng
Subjects: United States Postal Service.; Air mail service -- United States.
Notes: "Nov. 1982"--P. [3]