Friend, D. V. <br/><br/>
Quantitative methods / 

 - London ;  New York :  Longman,  1987. 
 - 248 p. :  ill. ;  22 cm. 
<br/><br/><label>ISBN: </label>058229696X (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>510 LON 1987 A028 Or.