Cita APA (7a ed.)

Bell, S., & Morse, S. (2008). Sustainability indicators: Measuring the immeasurable? (2nd ed.). Earthscan.

Cita Chicago Style (17a ed.)

Bell, Simon, y Stephen Morse. Sustainability Indicators: Measuring the Immeasurable? 2nd ed. London ; Sterling, VA: Earthscan, 2008.

Cita MLA (9a ed.)

Bell, Simon, y Stephen Morse. Sustainability Indicators: Measuring the Immeasurable? 2nd ed. Earthscan, 2008.