| 000 | 00485 a2200109 4500 | ||
|---|---|---|---|
| 080 |
_a5/6(084) _bO 23 E |
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| 245 | 1 | _aEveryday knowledge in pictures, showing how coal, gas electricity and water are produced & distributed, how telephones, clock, radiosets, domestic appliances and safety devices work, how transport systems are operated, how cinema films are projected and gramaphone records made | |
| 650 | _aScience and Technology | ||
| 100 |
_a _d |
||
| 300 | _a320 p. | ||
| 901 | _a73557 | ||
| 999 |
_c24218 _d24218 |
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