"Unlawful Importation of Copyrighted Works : hearings before the United States House Committee on Patents, Seventy-Sixth Congress, third session, on Mar. 21, 1940"@en
"Unlawful importation of copyrighted works"@en
"Unlawful importation of copyrighted works : hearings before the Committee on Patents, House of Representatives, Seventy-sixth Congress, third session, on S. 2689 : a bill to amend section 33 of the act entitled "An act to amend and consolidate the acts respecting copyright", approved March 4, 1909, and for other purposes"@en