Cleaver, K. M., & Schreiber, G. A. (1994). Reversing the spiral: The population, agriculture, and environment nexus in Sub-Saharan Africa. World Bank.
芝加哥风格引文Cleaver, Kevin M., 与 Götz A. Schreiber. Reversing the Spiral: The Population, Agriculture, and Environment Nexus in Sub-Saharan Africa. Washington, D.C.: World Bank, 1994.
MLA引文Cleaver, Kevin M., 与 Götz A. Schreiber. Reversing the Spiral: The Population, Agriculture, and Environment Nexus in Sub-Saharan Africa. World Bank, 1994.
警告：这些引文格式不一定是100％准确.