Gaya APA
Weilbacher, W, M. (1980).
Marketing management cases: planning and executing marketing strategy (3rd ed.).
New York:
Macmillan Publishing, Co. Inc..
Gaya MLA
Weilbacher, William, M..
"Marketing management cases: planning and executing marketing strategy".
3rd ed.
New York:
Macmillan Publishing, Co. Inc.,
1980.
Text.