000 00522nam a22001697a 4500
003 BD-DhUL
005 20170418103149.0
008 170418s1970 nyu||||| |||| 00| 0 eng
040 _aBD-DhUL
_cBD-DhUL
082 _a551.49
_bUNB
110 2 _aUnited Nations.
245 1 0 _aTechological developments in lead and zinc production and their significance to developing countries /
_cUnited Nations
260 _aNew York :
_bUnited Nations,
_c1970.
300 _a 85 p. :
_c28 cm.
650 0 _aEconomics
942 _2ddc
_cREF
999 _c184526
_d184526