Barbar Flexer (Flexer, Barbar)

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  Planets and Pulleys: Studies of Class Visits to Science Museums
  

  by Minda Borun, Barbar Flexer , Alice F. Casey, Lynn Baum

  ISBN 9780944040041 (978-0-944040-04-1)
  Softcover, Assn of Science Technology Ctr

  
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