Dyfyniad APA
Assael, H. (1993). Marketing: Principles & strategy (2nd ed.). Dryden Press.
Dyfyniad Arddull Chicago
Assael, Henry. Marketing: Principles & Strategy. 2nd ed. Forth Worth: Dryden Press, 1993.
Dyfyniad MLA
Assael, Henry. Marketing: Principles & Strategy. 2nd ed. Dryden Press, 1993.
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