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

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Date
1954
DOI
Authors
Pooler, Robert L
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https://hdl.handle.net/2144/8372
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Abstract
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This item was digitized by the Internet Archive. Thesis (Ed.M.)--Boston University
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Based on investigation of the BU Libraries' staff, this work is free of known copyright restrictions
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Dissertations and Theses (pre-1964)