APA (7th ed.) Citation

Hubbard, D. W., & Drummond, D. (2011). How to Measure Anything. Tantor Media.

Chicago Style (17th ed.) Citation

Hubbard, Douglas W., and David Drummond. How to Measure Anything. [Place of publication not identified]: Tantor Media, 2011.

MLA (8th ed.) Citation

Hubbard, Douglas W., and David Drummond. How to Measure Anything. Tantor Media, 2011.