Lojko, Waldren Peter2017-07-222017-07-2219521952b14705114https://hdl.handle.net/2144/23037Thesis (Ed.M.)--Boston UniversityThe purpose of this study was to determine the sources of and the uses for free materials, published by business firms that may be used in the teaching of transportation in the general business course at the ninth or tenth grade level.en-USBased on investigation of the BU Libraries' staff, this work is free of known copyright restrictions.Thesis/Dissertation