The measurement of the fact burden of three geography textbooks for grades five, six, and seven

Sawyer, Merle Crawford2016-10-312016-10-3119471947b1469282x(OCoLC)07832508(OCoLC)ocm07832508https://hdl.handle.net/2144/18868Thesis (Ed.M.)--Boston University, 1947. This item was digitized by the Internet Archive.en-USBased on investigation of the BU Libraries' staff, this work is free of known copyright restrictionsThe measurement of the fact burden of three geography textbooks for grades five, six, and sevenThesis/Dissertation