Talk:Design tool

External links modified
Hello fellow Wikipedians,

I have just modified one external link on Design tool. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
 * Added archive https://web.archive.org/web/20140318155344/http://cgt101.tech.purdue.edu/info/art01_Ferguson_1977.pdf to http://cgt101.tech.purdue.edu/info/art01_Ferguson_1977.pdf

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Cheers.— InternetArchiveBot  (Report bug) 10:54, 9 September 2017 (UTC)