APA citiranje
De Bono, E. (1991). Opportunities: A handbook of business opportunity search. Penguin Books.
Chicago Style (17th ed.) Citation
De Bono, Edward. Opportunities: A Handbook of Business Opportunity Search. London: Penguin Books, 1991.
MLA citiranje
De Bono, Edward. Opportunities: A Handbook of Business Opportunity Search. Penguin Books, 1991.
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