Zdroje většiny faktů

• twitch.tv/agraelus
• loudwire.com/tool-aenima-facts
• ranker.com/list/tool-band-facts/inigo-gonzalez
• ultimate-guitar.com/articles/features/10_facts_about_tool-69251
• guitar.com/features/artist-rigs/7-facts-about-tool
• loudersound.com/features/10-things-we-learned-from-maynard-james-keenans-biography
• samwoolfe.com/2013/03/interesting-facts-about-tools-music.html
• toolshed.down.net/news/aprilfools97.html