LEADER 00000nam 2200205 a 4500 001 0802377 003 UkHlHU 007 t 008 000408 6 1949 000 eng 040 UkHlHU 050 4 JIX B4 100 0 Beloe, R. 245 00 Visual aids to education :|ban address delivered to the Education Section of the British Association, [1949]. 300 0000p. 650 0 Education. 650 0 Educational technology. 650 0 Visual aids|xEducation.
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