APA (7th ed.) Citation
Tilman, D., Balzer, C., Hill, J., & Befort, B. (2011). Global food demand and the sustainable intensification of agriculture. National Academy of Sciences.
Chicago Style (17th ed.) Citation
Tilman, D., C. Balzer, J. Hill, and BL Befort. Global Food Demand and the Sustainable Intensification of Agriculture. National Academy of Sciences, 2011.
MLA (9th ed.) Citation
Tilman, D., et al. Global Food Demand and the Sustainable Intensification of Agriculture. National Academy of Sciences, 2011.
Warning: These citations may not always be 100% accurate.