000 00283nam a2200121 4500
003 OSt
008 220602b |||||||| |||| 00| 0 eng d
082 _a375.51
_b10192
245 _aKey topics in mathematics
300 _a112p.;
_c20cm
650 0 _aSocial Sciences
942 _2ddc
_cLM
999 _c139046
_d139046