Gaya APA

Edell, J, G., Lacniak, G, R. (1981). Marketing In An Age of Change : An Introduction . New York: John Wiley & Sons, Inc..

Gaya MLA

Edell, Jon, G.., Lacniak, Gene, R.. "Marketing In An Age of Change : An Introduction". New York: John Wiley & Sons, Inc., 1981. Text.