000 00326nam a2200145Ia 4500
020 _a9780435169749
082 _bT-1400
_a510
100 _a"Gecko"
245 0 _aAddition and Subtraction to 100
260 _bHeinemann
_c0
300 _a24
944 _cTB
999 _c238259
_d238259