Jeffery, Peter L. <br/><br/>
A handbook on the overhead projector / 
Peter Jeffery. 
 - [Port Moresby] :  Teaching Methods and Materials Centre, University of Papua and New Guinea,  1971. 
 - 20 leaves :  ill. 
<br/><br/> At head of title : Papua New Guinea Department of Education. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Overhead projection.<br/>Teaching--Aids and devices.