User talk:Dr John D A Piper

Welcome!
Hello, Dr John D A Piper, and welcome to Wikipedia! Thank you for your contributions. I hope you like the place and decide to stay. Here are some pages that you might find helpful: Please remember to sign your messages on talk pages by typing four tildes ( ~ ); this will automatically insert your username and the date. If you need help, check out Questions, ask me on my talk page, or ask your question on this page and then place  before the question. Again, welcome! Vsmith (talk) 15:07, 18 April 2013 (UTC)
 * Introduction to Wikipedia
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 * Simplified Manual of Style

Reference redundancy
Hi, I've sorted out some reference tag problems from your additions to supercontinent and supercontinent cycle. You had used the for two or more different references. This resulted in only one of your references showing up in the reference section. I've changed to ... to resolve the problem. Please check to see if I've introduced any errors. Thanks, Vsmith (talk) 13:47, 19 April 2013 (UTC)