00320nam a2200109Ia 4500082002300000100006400023245008000087260001900167300001400186500000500200700000500205  a338.47661bUn58.EC  aUnited Nations. Industrial Development Organisation, Vienna  aExtraction of chemical from seawater, inland brines and rock saltdepositsb  aNew Yorkc1972  axii, 59p.  a  a