Paul Dehart Hurd <br/><br/>
New Directions in elementary science teaching 

 - USA  Wadsworth publishing company, Inc.  1968 
 - 166p  21cm 
 - Wadsworth guides to science teaching. .
<br/><br/><label>LCCN: </label>6818372 
<br/><br/><label>Subjects--Uniform Titles: </label><br/> Science <br/>Study and teaching (Elementary) Sciences<br/>Étude et enseignement (Primaire) Natuurwetenschappen.
<br/><br/><label>Dewey Class. No.: </label>372.35 H959n