LEADER 00000nam 2200253 a 4500 001 0188403 003 UkHlHU 007 t 008 001912 0 1977 000 eng 040 UkHlHU 050 4 A/T 437 100 0 Sidenberg, Abraham. 245 00 Diffusion of counting /|cspeakers.|bA Seidenberg and G.Flegg. 260 Milton Keynes :|bOpen University Educational Enterprises, |c1977. 300 Audiotape. 440 0 Open University. Arts, mathematics: a second level course, AM289: History of mathematics, 2 500 Audiotape. 1 side. 650 0 Arithmetic. 650 4 Audio tapes. 700 0 Flegg, H.Graham. 710 2 Open University.
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