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| 260 |
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|a Washington :
|b OEA,
|c 1971.
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| 300 |
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|a vi, 132 p. :
|b diagrs. ;
|c 23 cm.
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| 504 |
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|a Bibliografía: p. 127.
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| 245 |
1 |
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|a La revolución en las matemáticas escolares :
|b segunda fase /
|c por Howard F. Fehr, John Camp y Howard Kellogg.
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| 490 |
1 |
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|a Matemática ;
|v no. 13
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| 100 |
1 |
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|a Fehr, Howard F.
|q (Howard Franklin),
|d 1901-
|
| 700 |
1 |
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|a Camp, John.
|4 aut
|e co-autor
|
| 700 |
1 |
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|a Kellogg, Howard.
|4 aut
|e co-autor
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| 080 |
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|a 51
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| 650 |
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0 |
|a Mathematics.
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| 040 |
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|a DLC/ICU
|c ICU
|d DLC
|b spa
|d arbccab
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|c BK
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| 952 |
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|2 udc
|a ARBCCAB
|b ARBCCAB
|i 5212
|o 51 F322
|p 5212
|t 1
|y BK
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