000 00331 a2200145 4500
082 _a666.4
_bN21 V.8
100 _aNational Conference On Clays
245 1 _aCLAYS AND CLAY MINERALS
260 _a
_bPergamon Press
_c1960
300 _a
700 _aClay Minerals(8th
700 _a
964 _gCIRC
997 _aA249 v. 8 s C
999 _c456562
_d456562