Lua APA (7ú heag.)
Bell, S., & Morse, S. (2003). Measuring sustainability: Learning by doing. Earthscan Publications Ltd.
Lua i Stíl Chicago (17ú heag.)
Bell, Simon, agus Stephen Morse. Measuring Sustainability: Learning by Doing. London ; Sterling, VA: Earthscan Publications Ltd, 2003.
Lua MLA (9ú heag.)
Bell, Simon, agus Stephen Morse. Measuring Sustainability: Learning by Doing. Earthscan Publications Ltd, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.