@book{ BA87673263,
  author    = "資源素材学会 and Joint Meeting MMIJ-AIME",
  title     = "Coal mines in Kyushu area",
  publisher = "Mining and Metallurgical Institute of Japan",
  year      = "1972",
  series    = "Joint meeting MMIJ-AIME 1972, Tokyo May 24-27",
  number    = "guidebook ; 12",
  URL       = "http://ci.nii.ac.jp/ncid/BA87673263"
}