In-Service teacher education in the use of audio-visual instructional materials.

Emery, Lillian M.2016-09-292016-09-2919591959b14704614https://hdl.handle.net/2144/17940Thesis (Ed.M.)--Boston Universityen-USBased on investigation of the BU Libraries' staff, this work is free of known copyright restrictions.In-Service teacher education in the use of audio-visual instructional materials.Thesis/Dissertation