Population Institute. (1988). The Nairobi challenge: Global directory of women's organizations implementing population strategy. Population Institute.
Chicago-referens (17:e uppl.)Population Institute. The Nairobi Challenge: Global Directory of Women's Organizations Implementing Population Strategy. Washington, D.C.: Population Institute, 1988.
MLA-referens (8:e uppl.)Population Institute. The Nairobi Challenge: Global Directory of Women's Organizations Implementing Population Strategy. Population Institute, 1988.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.