Economy and technique of learning,
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| OCLC: | 2142688 |
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| Hlavní autor: | |
| Jazyk: | English |
| Vydáno: |
Boston,
D. C. Heath
[c1932]
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| Témata: | |
| Médium: | Monograph Note that CRL will digitize material from the collection when copyright allows. |
| Fyzický popis: | x, 534 p. illus., diagrs. 20 cm. |
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