00371nam a22001095i 4500020004400000082002500044100001400069245011100083250001700194300001300211526003700224  a9780128127025 (papercover : alk. paper)  a624.1bYUNcN-2,P-991 aYun, Bai.10aUnderground engineering cBai Yun.bPlanning, Design , Construction and operation of the underground space  a1st edition.  apages cm  a0b0c0d624_100000000000000_YUN