APA (7th ed.) Zitazioa
Hubbard, D. W. How to Measure Anything: Finding the Value of "intangibles" in Business. Wiley.
Chicago Style (17th ed.) Zitazioa
Hubbard, Douglas W. How to Measure Anything: Finding the Value of "Intangibles" in Business. Hoboken, EUA: Wiley.
MLA (9th ed.) Zitazioa
Hubbard, Douglas W. How to Measure Anything: Finding the Value of "Intangibles" in Business. Wiley.
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