000 00249nam a2200109Ia 4500
008 220201s1974 xx 000 0 eng d
100 _aI L O
245 0 _aINTRODUCTION TO WORK STUDY
260 _aGENEVA
_bI L O
_c1974
300 _a436
942 _2ddc
999 _c89581
_d89581