Dolan, James Boyle2013-01-242013-01-2419501950b14624850https://hdl.handle.net/2144/4570Thesis (Ed.D.)--Boston University.en-USBased on investigation of the BU Libraries' staff, this work is free of known copyright restrictionsTeachersProfessional educationExtended leaves of absence for the professional improvement of public-school educatorsThesis/Dissertation