| 000 |
|
00455nam0 2200145 450 |
| 020 |
__ |
■cCNY15.00 |
| 040 |
__ |
■aGSXY |
| 093 |
__ |
■aN4■24 |
| 100 |
1_ |
■aSchwartz, Julius,■d1907- |
| 245 |
10 |
■aIt's fun to know why;■bexperiments with things around us.■+...... |
| 260 |
__ |
■aNew York :■bWhittlesey House,■c[1952] |
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__ |
■a125 p. :■billus. ;■c21 cm. |
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_0 |
■aScience■vJuvenile literature. |
| 950 |
__ |
■aGSXY■fN4/ES434 |
| 999 |
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■tA■Ayw2■a20101217 16:08:22 |
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