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Illustrated world of science encyclopedia, The world of science, Vol.15: Physics, Part2: Energy 2: Heat, electricity, and magnetism
| Prif Awdur: | |
|---|---|
| Fformat: | Printed Book |
| Cyhoeddwyd: |
Creative World Publications, Inc., Chicago
1971
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| Pynciau: |
| Mae'n ddrwg gennym, ni ellir dod o hyd i unrhyw awgrymiadau |