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100 | 1 | _a"leadbetter, chris . " | |
245 | 1 | 0 |
_aigcse and o level computer studies and information technolog: _b/ _c chris.. leadbetter |
250 | _a ed. | ||
260 |
_auk : _bcambridge university pres _c2004. |
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300 |
_a"x, 212p.; _c25 cm." |
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