Population Institute. (1988). The Nairobi challenge: Global directory of women's organizations implementing population strategy. Population Institute.
芝加哥风格引文Population Institute. The Nairobi Challenge: Global Directory of Women's Organizations Implementing Population Strategy. Washington, D.C.: Population Institute, 1988.
MLA引文Population Institute. The Nairobi Challenge: Global Directory of Women's Organizations Implementing Population Strategy. Population Institute, 1988.
警告：这些引文格式不一定是100％准确.