Knox, P. L., & Mayer, H. (2009). Small town sustainability: Economic, social, and environmental innovation. Birkhauser.
Lua i Stíl Chicago (17ú heag.)Knox, Paul L., agus Heike Mayer. Small Town Sustainability: Economic, Social, and Environmental Innovation. Basel ; Boston: Birkhauser, 2009.
Lua MLA (9ú heag.)Knox, Paul L., agus Heike Mayer. Small Town Sustainability: Economic, Social, and Environmental Innovation. Birkhauser, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.