| This image is reproduced courtesy of The Estate of W. Ross Ashby. Copyright 1972, 2008 © The Estate of W. Ross Ashby |
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| 2939 | Volume 12 | 1950 | 2940 | Volume 12 | 1950 |
| This page references 2 pages: 2932 2939 This page is referenced from 2 pages: 2933 2939 |
This page references page 2938 |
| This image is reproduced courtesy of The Estate of W. Ross Ashby. Copyright 1972, 2008 © The Estate of W. Ross Ashby |
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