APA (7th ed.) Zitazioa
Marburger, D. R. (2012). How strong is your firm's competitive advantage? Business Expert Press.
Chicago Style (17th ed.) Zitazioa
Marburger, Daniel R. How Strong Is Your Firm's Competitive Advantage? [New York, N.Y.] (222 East 46th Street, New York, NY 10017): Business Expert Press, 2012.
MLA (9th ed.) Zitazioa
Marburger, Daniel R. How Strong Is Your Firm's Competitive Advantage? Business Expert Press, 2012.
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