Cita APA (7a ed.)
Campbell, B. M., Vermeulen, S. J., Hansen, J., Jarvis, A., Thornton, P. K., & Wollenberg, E. K. (2011). How can we feed nine billion people while reducing GHG emissions?
Cita Chicago Style (17a ed.)
Campbell, Bruce M., Sonja J. Vermeulen, James Hansen, Andy Jarvis, Philip K. Thornton, y Eva Karoline Wollenberg. How Can We Feed Nine Billion People While Reducing GHG Emissions? 2011.
Cita MLA (9a ed.)
Campbell, Bruce M., et al. How Can We Feed Nine Billion People While Reducing GHG Emissions? 2011.
Precaución: Estas citas no son 100% exactas.