| 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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| 7090 | Volume 25 | 1970 | 7091 | Volume 25 | 1970 |
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Design informational cost 7115 |
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| This page is referenced from page 7114 |
| 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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