Principles of scientific blitzing; a study in human engineering, scientific principles of decreasing time lag /
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| Format: | Book |
| Language: | English |
| Published: |
Chicago, Ill.,
E. Don & Co.,
1941.
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| Edition: | 4th ed. |
| Subjects: |
| Item Description: | "Revised and enlarged edition, August, 1941." |
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| Physical Description: | [3]-93 pages including illustrations forms 17 cm |