%0 Generic %T Increase of Salaries for the Postal Service and Classification of Substitute Employees hearings before the United States Senate Committee on Post Offices and Post Roads, Seventy-Seventh Congress, second session, on Apr. 9, 15, 1942. %U https://ezaccess.libraries.psu.edu/login?url=http://congressional.proquest.com/congcomp/getdoc?HEARING-ID=HRG-1942-PPR-0001