The mechanical ability of subnormal boys
Author(s)
Bibliographic Information
The mechanical ability of subnormal boys
（Contributions to education, no. 699）
AMS Press, 1972
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Note
Reprint of the 1937 ed., issued in series: Teachers College, Columbia University. Contributions to education, no. 699
Originally presented as the author's thesis, Columbia
Bibliography: p. 69-73
