Talk:Barber–Johnson diagram

External links modified
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I have just modified 1 one external link on Barber–Johnson diagram. 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/20060908085540/http://www.publichealth.pitt.edu/supercourse/SupercoursePPT/7011-8001/7891.ppt to http://www.publichealth.pitt.edu/supercourse/SupercoursePPT/7011-8001/7891.ppt

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Cheers.— InternetArchiveBot  (Report bug) 06:24, 27 October 2016 (UTC)