APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

Bell, Simon, och Stephen Morse. Measuring Sustainability: Learning by Doing. London: Earthscan, 2003.

MLA-referens (9:e uppl.)

Bell, Simon, och Stephen Morse. Measuring Sustainability: Learning by Doing. Earthscan, 2003.