APA (7 वां संस्करण) प्रशस्ति पत्र
Hubbard, D. W. (2014). How to measure anything: Finding the value of "intangibles" in business (Third edition.). Wiley.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Hubbard, Douglas W. How to Measure Anything: Finding the Value of "Intangibles" in Business. Third edition. Hoboken, New Jersey: Wiley, 2014.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Hubbard, Douglas W. How to Measure Anything: Finding the Value of "Intangibles" in Business. Third edition. Wiley, 2014.
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