00686nam a22001457a 4500008004100000040005500041080002100096245012800117260009400245650001200339653001200351942001300363999001700376952014700393230703b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  a622.2(047.3)bM4  a12th congress of world mining congress minier mondialc/ Organizing Committee of the 12th congress of world mining congress  aNew Delhi:  bOrganizing Committee of the 12th congress of world mining congress,  c1984  2Science  aEcology  2udccREP  c48720d48720  00102udc40662220473_M470975448aNSLbNSLcGF/Rk-10/C-14/R-3d1985-07-17l0o622.2(047.3) M4p105671r2023-07-03 00:00:00w2023-07-03yREP