共 14 条
[1]
ADAMS MJ, 1979, LIGHT MET, P205
[2]
Bengtson KB., 1979, LIGHT MET, P217
[3]
BISHOP HB, 1924, Patent No. 1480928
[4]
BOHN HL, 1979, SOIL CHEM, P78
[5]
BREMNER PR, 1982, 8594 US BUR MIN REP
[6]
GAJAM SY, UNPUB T I MIN METALL
[7]
GAJAM SY, 1985, THESIS U ARIZONA TUC
[8]
GIBBS WT, 1905, Patent No. 23473
[9]
HULBERT SF, 1970, J CLAY MINER, V8, P337