Lancaster, Graham <br/><br/>
The 20% factor:  you, your life, your job, how to achieve immediate 20% improvements / 
Graham Lancaster 
 - London :  Kogan Page,  1993 
 - 2nd ed. 181 p. ;  22 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>074940776X (pbk.)