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| 008 | 140520s9999||||xx |||||||||||||| ||und|| | ||
| 082 | _a372.35044 | ||
| 082 | _bKob | ||
| 100 | _aKoba, Susan | ||
| 245 | _aHard-To -Teach Science Concepts : | ||
| 260 | _aArtington | ||
| 260 | _bNsta | ||
| 260 | _c2011 | ||
| 300 | _axvi;256 | ||
| 300 | _bpb | ||
| 300 | _c8x5.5 | ||
| 350 | _a1551.37 | ||
| 365 | _b1318 | ||
| 365 | _dRupees | ||
| 923 | _n50039302 SQ/ 7/27/2012 | ||
| 999 |
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