Futrell, Charles.
Fundamentals of selling: customers for life through service /
Charles M. Futrell 
. - 8th edition 
. - Boston, Mass. : McGraw-Hill/Irwin,  2004 
. - xxiii, 610 p.  ill., tab., schem.  26 cm. 
 - (The McGraw-Hill/Irwin series in marketing )
<br/>К.: Бібліогр. : c. 587-591 
<br/><label>  ISBN: </label>0-07-283461-7