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120507s1957 fi g 000 0 eng d |
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|a Vahervuo, Toivo
|9 112384
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1 |
0 |
|a Pupils' Arithmetical Ability :
|b Differences Due to the Teacher. A methodological Approach
|
| 260 |
|
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|a Helsinki :
|b Suomalainen Tiedeakatemia,
|c 1957.
|
| 300 |
|
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|a 48 p. ;
|c 18 cm.
|
| 490 |
0 |
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|a Annales Academiae Scientiarum Fennicae. Ser. B. ;
|v T. 107, 2
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| 942 |
|
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|d CLI CLI
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