Qualitative differences between levels of intelligence in feeble-minded children, by Louise Ellison Ordahl, PH. D., and George Ordahl, PH. D.
|Main Author:||Ordahl, Louise (Ellison)|
|Other Authors:||Ordahl, George.|
Faribault : Minnesota school for feeble-minded and colony for epileptics, 
Mentally Disabled Persons.
|Original Classification Number:||RC321 .J845 vol. 1, no. 2|
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