Anker, R., Buviniγac, M., & Youssef, N. H. (2011). Womens' roles and population trends in the Third World: A study prepared for the International Labour Office within the framework of the World Employment Programme with the financial support of the United Nations Fund for Population Activities. London: Routledge.

Anker, Richard, Mayra Buviniγac, and Nadia Haggag Youssef. Womens' Roles and Population Trends in the Third World: A Study Prepared for the International Labour Office Within the Framework of the World Employment Programme With the Financial Support of the United Nations Fund for Population Activities. London: Routledge, 2011.

Anker, Richard, Mayra Buviniγac, and Nadia Haggag Youssef. Womens' Roles and Population Trends in the Third World: A Study Prepared for the International Labour Office Within the Framework of the World Employment Programme With the Financial Support of the United Nations Fund for Population Activities. London: Routledge, 2011.