Cox, C.J. <br/><br/>
Understanding mathematics 3 / 
by C.J. Cox. 
 - 2nd ed. 
 - London :  John Murray,  1990. 
 - 249 p. : ;  25 cm. 
<br/><br/><label>ISBN: </label>0719547563 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics.