000 00366nam a2200133 a 4500
008 170703s1940#### ||||f#|||||00| 0#uuu#d
003 AR-SmCIES
091 _a16752
100 1 _aRichards, R. H.
245 1 0 _aTextbook of ore dressing.
260 _a[s.l.] :
_b[s.n.],
_c1940.
999 _c20889
_d20889