000 00654nam a2200193Ia 4500
008 170503s9999||||xx |||||||||||||| ||und||
080 _a550.4
245 0 _aFractional precipitation of rare earths with phosphoric acid /
_cby M. K. Carron...[et al.].
260 _aWashington :
_bUnited States Government Printing Office,
_c1958
300 _aP. 253-275. --
336 _2isbdcontent
_aTexto (visual)
337 _2isbdmedia
_3Impreso
_asin mediación
490 _aGeological Survey Bulletin
490 _v 1036-N
650 _aGeoquímica
942 _2cdu
942 _cBK
999 _c21122
_d21122