LEADER 00000nam 2200229 a 4500 001 0826457347 007 t 008 030313r20011993enk r 000 eng d 020 0826457347 020 0304325538 040 CURLBL 050 4 QA 11 O7 100 1 Orton, Anthony. 245 10 Learning mathematics :|bissues, theory and classroom practice /|cAnthony Orton. 250 2nd ed. 260 London :|bContinuum,|c1993. 300 198p. 440 0 Continuum Education series 650 0 Mathematics|xStudy and teaching.
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