Cels, S., Jong, J. d., & Nauta, F. (2012). Agents of change: Strategy and tactics for social innovation. Brookings Institution Press.
Lua i Stíl Chicago (17ú heag.)Cels, Sanderijn, Jorrit de Jong, agus Frans Nauta. Agents of Change: Strategy and Tactics for Social Innovation. Washington, D.C.: Brookings Institution Press, 2012.
Lua MLA (9ú heag.)Cels, Sanderijn, et al. Agents of Change: Strategy and Tactics for Social Innovation. Brookings Institution Press, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.