APA
Blanpain R. (., Engels C. (., . (2001). The ILO and the social challenges of the 21st century: The G. The Hague: Kluwer Law International.
Chicago
Blanpain Roger (ed), Engels Chris (ed), . 2001. The ILO and the social challenges of the 21st century: The G. The Hague: Kluwer Law International.
Harvard
Blanpain R. (., Engels C. (., . (2001). The ILO and the social challenges of the 21st century: The G. The Hague: Kluwer Law International.
MLA
Blanpain Roger (ed), Engels Chris (ed), . The ILO and the social challenges of the 21st century: The G. The Hague: Kluwer Law International. 2001.