BS 4930:1973
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Recommendations for equipment for teaching the metric system of measurement
Hardcopy , PDF
30-11-1990
English
14-02-1975
Range of equipment for teaching the metric system of measurement to children aged 5 to 13 years.
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