Donabedian, Harold P.2014-09-222014-09-2219541954b14649354https://hdl.handle.net/2144/9048Typescript. Thesis (S.T.B.)--Boston University Includes bibliographical references.en-USBased on investigation of the BU Libraries' staff, this work is free of known copyright restrictions.Apprenticeship programs today and tomorrow in the metal trades.Thesis/Dissertation