Kotler, Philip.
Marketing Essentials / - 1st ed / - New Jersey : Prentice-Hall, Inc. , 1994 - p556 :
0-13-557232-0
Marketing
X:51 / M4
Marketing Essentials / - 1st ed / - New Jersey : Prentice-Hall, Inc. , 1994 - p556 :
0-13-557232-0
Marketing
X:51 / M4