Office machines course : full keyboard adding listing machine, ten-key adding listing machine, crank-driven calculator, key-driven calculator
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| OCLC: | 3590419 |
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| 主要作者: | |
| 语言: | English |
| 出版: |
Cincinnati : New York,
South-western Pub. Co. ;
[c1942]
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| 主题: | |
| 格式: | Monograph Note that CRL will digitize material from the collection when copyright allows. |
| 实物描述: | iv, 124 p. ill., tables, forms. 28 cm. |
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| 读者: | High School. |