Duvall, Dale A.2016-08-082016-08-0819491949b14745422(OCoLC)07885895(OCoLC)ocm07885895https://hdl.handle.net/2144/17579Thesis (M.A.)--Boston University, 1949. This item was digitized by the Internet Archive.en-USBased on investigation of the BU Libraries' staff, this work is free of known copyright restrictionsMathematical backgrounds, skills and operations prerequiste to Sp and CAF positions in civil service,Thesis/Dissertation