000 00327nam a2200145Ia 4500
003 LDD
020 _a0080418058
040 _cLDD
082 _aR378.03025 Op2
245 0 _aOpen learning directory 1992
260 _aOxford
_bPergamon Open Learning
_c1992
300 _axxvi, 599
901 _a1943
_b01-03-2000
942 _2ddc
_cG
999 _c6105
_d6105