00420nam a22000977a 4500008004100000040005500041245016100096260003900257300001000296650001600306230718b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  aProceedings of the United Nations interregional seminar on ore concentration in water-short areasc/ New York, United States of America 14-25 February, 1966  aNew York: bUnited Nations, c1968  a342p.  aProceedings