User talk:47.9.199.252

September 2017
Please refrain from making unconstructive edits to Wikipedia, as you did at Peter Drucker. Your edits appear to constitute vandalism and have been reverted. If you would like to experiment, please use the sandbox. Repeated vandalism can result in the loss of editing privileges. Thank you. --David Biddulph (talk) 10:19, 22 September 2017 (UTC)