%0 Generic %T Estimates for Construction of the Isthmian Canal for FY11 Supplement: Statements of the Representatives of Skilled Employees: hearings before the United States House Committee on Appropriations, Sixty-First Congress, first session, on Nov. 18, 1909. %U https://ezaccess.libraries.psu.edu/login?url=http://congressional.proquest.com/congcomp/getdoc?HEARING-ID=HRG-1909-HAP-0010