Friend, Derek V. <br/><br/>
Quantitative methods / 
D. V. Friend. 
 - Harlow :  Longman,  1987 
 - viii, 248 p. :  ill. ;  22 cm. 
 - Longman Exam guides. .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Problems, exercises, etc.<br/>Business mathematics
<br/><br/><label>Dewey Class. No.: </label>510