Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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