Chapman, Myra. <br/><br/>
Plain figures / 
Myra Chapman ; in collaboration with Basil Mahon. 
 - London :  HMSO,  1986. 
 - 110 p. :  ill. ;  30 cm. 
<br/><br/><label>ISBN: </label>0114300011 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistics.