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| 082 | _a301.2 | ||
| 100 | _aNational Science Teachers Asso | ||
| 245 | _aSCIENCE LOOKS AT ITSELF : NEW LIGHT ON THE PROMISES AND THREATS OF OUR TECHNOLOGICAL AGE | ||
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| 260 | _c1977/10/21 | ||
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| 365 | _b22.5 | ||
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