000 00336nam a2200145Ia 4500
020 _a9780435169749
082 _bT-224
_a510
100 _a"GECKO"
245 0 _aADDITION AND SUBTRUCTION TO 100
260 _b,JORDEN HILLS
_aUK
_c1999
300 _a31
944 _cTB
999 _c276815
_d276815