Determination for the modal age level for the grades IV and VI of the difficulty of the principal: The more rapid the vibrations of a body, the higher is the pitch of the note emitted by it
Permanent Link
https://hdl.handle.net/2144/8372Description
This item was digitized by the Internet Archive. Thesis (Ed.M.)--Boston University
Rights
Based on investigation of the BU Libraries' staff, this work is free of known copyright restrictionsCollections