Inversin, Allen R. <br/><br/>
Some ideas on improved science equipment / 
prepared for the Workshop on Low-Cost Science Teaching Materials held by the Commonwealth Secretariat at Unitech, Lae, Papua New Guinea, 19-31 March 1979 by Allen R. Inversin. 
 - Lae :  Appropriate Technology Development Unit, Papua New Guinea University of Technology,  1979. 
 - 25 p. 
<br/><br/><label>LCCN: </label>90032114     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science apparatus and instruments.<br/>Science--Study and teaching.