Certification for reduced tax rates in tax treaty countries.
Edition: Rev. Apr. 1979.
Series: Publication - Internal Revenue Service ; 686; Publication (United States. Internal Revenue Service) -- 686.
Publisher: Treasury Dept., Internal Revenue Service : for sale by the Supt. of Docs., U.S. Govt. Print. Off.
Published: 1979
Place of publication: Washington
Language: eng
Subjects: Income tax -- United States -- Foreign income.