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|a AR-SjUFH
|c AR-SjUFH
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| 900 |
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|a Proyecto Huarpe
|b 6699
|c 6699
|d Proyecto Huarpe
|
| 245 |
1 |
0 |
|a Modern elementary school science :
|b a recommended sequence /
|c Willard J. Jacobson and Harol E. Tannenbaum.
|
| 260 |
|
|
|a New York :
|b Columbia University,
|c 1961.
|
| 082 |
0 |
|
|a 372.35
|2 18 EN
|
| 650 |
|
7 |
|a CIENCIA
|x ENSEÑANZA ELEMENTAL
|9 77492
|
| 100 |
1 |
|
|a Jacobson, Willard J.
|9 77493
|
| 490 |
1 |
|
|a Science manpower project monographs.
|
| 830 |
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0 |
|a Science manpower project monographs.
|9 77494
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| 300 |
|
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|a x, 194 p. ;
|c 21 cm.
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| 942 |
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|2 ddc
|c LIB
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| 999 |
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|c 70353
|d 70353
|