Lådor
-100 -50 -10 -1 +1 +10 +50 +100
Main Image 
{}
/ cam -- canm / 00304
OCR-text (abbyy)
Campbell, Donald F
Factorial comparison of arithmetic performance
of boys in sixth and seventh-grade.
8:o Washington, D. C. 1956.
Diss. Catholic university of America.
OCR-text (abbyy-crop)
Campbell , Donald F	•
Factorial comparison of arithmetic performance
of boys in sixth and seventh-grade.
8:0 Washington, D. C. 1956.
Diss. Catholic university of America.
Saknar hörn
Nej
Hörntext
Anteckning