Fehr, H. F. (1940). A Study of the number concept of secondary school mathematics.
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Chicago Style (17th ed.) Citation
Fehr, Howard Franklin. A Study of the Number Concept of Secondary School Mathematics. New York, 1940.
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MLA (9th ed.) Citation
Fehr, Howard Franklin. A Study of the Number Concept of Secondary School Mathematics. 1940.
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Warning: These citations may not always be 100% accurate.