Keighley, H. J. P. <br/><br/>
Physical world :  an O-level course, eng / 

 - 3rd ed 
 -  Pergamonm wheaton ,  1969. 
 - 116 p.  29cms 
<br/><br/> Vol.1, Mechanics 
<br/><br/><label>Subjects--Index Terms: </label>Physics