00542nam a22001697a 4500010001500000020002600015035001300041037001300054082001000067100001900077245007400096260003000170270006900200300003300269500005000302700002000352  aENG-114986  a9788120351745c325.00  aEN-98518  bDBAD/PUB  a338.2  aRay,Subhash C.  a Mine and mineral economics /cby Subhash C. Ray [and] Indra N. Sinha  aDelhibPHI Learningc2016  aRimjhim House, 111, Patparganj Industrial Estate,bDelhie110092  axiv,242p. :bill.c24cm(Pbk)  aIncludes bibliographical references and index  aSinha, Indra N.