Bowker, M.K <br/><br/>
Making elementary science apparatus:  a handbook for teachers in tropical areas/ 
by M.K Bowker and A.R.D Hunt 
 - Ontario  Thomas Nelson and Sons  c1968 and reprinted 1979 
 - 65p.:  ill. 
<br/><br/><label>ISBN: </label>0175550115 
<br/><br/><label>Dewey Class. No.: </label>500