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| LEADER |
00668nam a2200157Ia 4500 |
| 001 |
81116 |
| 008 |
170722s9999 xx 000 0 und d |
| 245 |
|
|
|a NEW UNESCO SOURCE book for science teaching /
|
| 260 |
|
|
|b Unesco Press ,
|c 1973.
|
| 300 |
|
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|a 270 p.
|c 22cms
|
| 490 |
|
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|a Unesco publications
|
| 500 |
|
|
|a Published previously as UNESCO source book for science teaching
|
| 942 |
|
|
|c GEN
|
| 999 |
|
|
|c 92158
|d 92158
|
| 952 |
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