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1af Rayner, David, 1949 Apr. 23-Fag “...Mathematics Study and teaching (Secondary) Great Britain....”
Udgivet 2005
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2af Bostock, L.Fag “...Mathematics Study and teaching (Secondary) Great Britain....”
Udgivet 1985
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3af Bostock, L.Fag “...Mathematics Study and teaching (Secondary) Great Britain....”
Udgivet 1985
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