Haigner, S. D., Jenewein, S., Schneider, F., & Wakolbinger, F. (2013). Driving forces of informal labour supply and demand in Germany. International Labour Organization.
Citazione stile Chigago Style (17a edizione)Haigner, Stefan D., Stefan Jenewein, Friedrich Schneider, e Florian Wakolbinger. Driving Forces of Informal Labour Supply and Demand in Germany. International Labour Organization, 2013.
Citatione MLA (9a ed.)Haigner, Stefan D., et al. Driving Forces of Informal Labour Supply and Demand in Germany. International Labour Organization, 2013.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.