| LC control no. | sh 89005705 |
|---|---|
| LC classification | Q |
| Topical heading | Physical sciences |
| See also | Science |
| Found in | Work cat.: The Physical sciences in the twentieth century, 1989. Random House. Web. 3. McGraw-Hill encyc. sci. tech. MESH. Britannica Micro. |
| Not found in | McGraw-Hill dict. sci. tech.; Encyc. phys. sci. tech.; Collier's; Americana |
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