| 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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| 4773+01 | Volume 18 | 1954 | 4773+02 | Volume 18 | 1954 |
| This page references 5 pages: 4847 4876 4868 4904 5097 |
| 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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