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The Teaching of secondary mathematics
Charles H. Butler, F. Lynwood Wren, J. Ho...
Bok Engelsk 1970
Basic mathematical concepts
Wren, F. Lynwood
Bok Engelsk 1965
The teaching of secondary mathematics
Charles H. Butler, F. Lynwood Wren
Bok Engelsk 1960
The teaching of secondary mathematics
by Charles H. Butler and F. Lynwood Wren
Bok Engelsk 1951