000 00270nam a2200109Ia 4500
008 211209s9999 xx 000 0 und d
041 _aeng
082 _aINT
100 _aINTERNATIONAL LABOUR ORGANIZATION(GENEVA)
245 _aINTRODUCTION TO WORK STUDY
300 _a430
999 _c10354
_d10354