| 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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| 3161 | Volume 13 | 1951 | 3162 | Volume 13 | 1951 |
| This page references 2 pages: 3229 3155 |
This page references page 3154 |
| 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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