Cita APA (7a ed.)

Bell, S., & Morse, S. (2003). Measuring sustainability: Learning by doing. Earthscan Publications Ltd.

Cita Chicago Style (17a ed.)

Bell, Simon, y Stephen Morse. Measuring Sustainability: Learning by Doing. London ; Sterling, VA: Earthscan Publications Ltd, 2003.

Cita MLA (9a ed.)

Bell, Simon, y Stephen Morse. Measuring Sustainability: Learning by Doing. Earthscan Publications Ltd, 2003.