Analysis of information sources in references of the Wikipedia article "كريس كلاين (شخصية أعمال)" in Arabic language version.
Chris Cline became a billionaire by betting on a dirty fuel the world can't get enough of. With maps of 675 square miles of his Illinois mines before him, Chris Cline recalls the moment he knew the coal in those mines would be worth billions of dollars.
{{استشهاد ويب}}: |url= بحاجة لعنوان (مساعدة) والوسيط |title= غير موجود أو فارغ (من ويكي بيانات) (مساعدة)Chris Cline became a billionaire by betting on a dirty fuel the world can't get enough of. With maps of 675 square miles of his Illinois mines before him, Chris Cline recalls the moment he knew the coal in those mines would be worth billions of dollars.