00350nam a2200121la 450000500170000000800370001702000180005405000210007210000230009324500550011626000470017130000100021820260128043443.0251202s9999    xx        000 0 und d  a9780521764902  aK 1821bHUM 2009  aFranziska Humbert.  aThe challenge of child labour in international law  aNew YorkbCambridge University Pressc2009  a435p.