International Center for Development and Decent Work, ProQuest (Firm), Schwenken, H., & Heimeshoff, L. (2011). Domestic workers count: Global data on an often invisible sector. Kassel University Press.

International Center for Development and Decent Work, ProQuest (Firm), Helen Schwenken, and Lisa-Marie Heimeshoff. Domestic Workers Count: Global Data on an Often Invisible Sector. Kassel [Germany]: Kassel University Press, 2011.

International Center for Development and Decent Work, et al. Domestic Workers Count: Global Data on an Often Invisible Sector. Kassel University Press, 2011.