Leisinger, K. M., Schmitt, K., & Pandya-Lorch, R. (2002). Six billion and counting: Population growth and food security in the 21st century. International Food Policy Research Institute.
Chicago-Zitierstil (17. Ausg.)Leisinger, Klaus M., Karin Schmitt, und Rajul Pandya-Lorch. Six Billion and Counting: Population Growth and Food Security in the 21st Century. Washington, DC: International Food Policy Research Institute, 2002.
MLA-Zitierstil (9. Ausg.)Leisinger, Klaus M., et al. Six Billion and Counting: Population Growth and Food Security in the 21st Century. International Food Policy Research Institute, 2002.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.