By Wikipedia:Verifiability, "Information on Wikipedia must be reliable. Facts, viewpoints, theories, and arguments may only be included in articles if they have already been published by reliable and reputable sources. Articles should cite these sources whenever possible. Any unsourced material may be challenged and removed."
By Wikipedia:Verifiability, "Information on Wikipedia must be reliable. Facts, viewpoints, theories, and arguments may only be included in articles if they have already been published by reliable and reputable sources. Articles should cite these sources whenever possible. Any unsourced material may be challenged and removed."