أرسل هذا في رسالة قصيرة: Practical advances in petroleum processing. Volume 1

  _____     ______             _    _     _  _   
 / ____||  /_   _//     ___   | || | ||  | \| || 
/ //---`'   -| ||-     /   || | || | ||  |  ' || 
\ \\___     _| ||_    | [] || | \\_/ ||  | .  || 
 \_____||  /_____//    \__ ||  \____//   |_|\_|| 
  `----`   `-----`      -|_||   `---`    `-` -`  
                         `-`