APA (7th ed.) Citation
Valin, H., Havlík, P., Mosnier, A., Herrero, M., Schmid, E., & Obersteiner, M. (2013). Agricultural productivity and greenhouse gas emissions: Trade-offs or synergies between mitigation and food security? IOP Publishing.
Chicago Style (17th ed.) Citation
Valin, Hugo, Petr Havlík, Aline Mosnier, Mario Herrero, Erwin Schmid, and Michael Obersteiner. Agricultural Productivity and Greenhouse Gas Emissions: Trade-offs or Synergies Between Mitigation and Food Security? IOP Publishing, 2013.
MLA (9th ed.) Citation
Valin, Hugo, et al. Agricultural Productivity and Greenhouse Gas Emissions: Trade-offs or Synergies Between Mitigation and Food Security? IOP Publishing, 2013.
Warning: These citations may not always be 100% accurate.