Gaya APA
      Ph.D., J, P, C. et al (2009).
    Basic Marketing A Marketing Srategy Planning Approach .
    New York:
  McGraw-Hill.
  
Gaya MLA
      Ph.D., Joseph, P., Cannon,. et al.
    "Basic Marketing A Marketing Srategy Planning Approach".
    
    New York:
  McGraw-Hill,
  2009.
  Text.