Mamas, Helen2016-10-312016-10-3119461946b14789346(OCoLC)07959998(OCoLC)ocm07959998https://hdl.handle.net/2144/18801Thesis (M.A.)--Boston University, 1946. This item was digitized by the Internet Archive.en-USBased on investigation of the BU Libraries' staff, this work is free of known copyright restrictionsThesis/Dissertation