Basic physical science for technology.  Unit 15 Waves; Unit 16 Geometrical optics /  281 : 
prepared by the Open University Course Team. 
 - Walton Hall, Milton Keynes :  Open University,  1984. 
 - 64 p. ;  30 cm. 
<br/><br/><label>ISBN: </label>0335171664 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics.<br/>Geometrical optics.<br/>Waves.