TY  - RPRT
TI  - Geochemical studies of clay minerals III. The determination of free silica and free alumina in montmorillonites
AU  - Margaret D. Foster
PY  - 1953
DO  - 10.1016/0016-7037(53)90003-9
UR  - https://pubs.usgs.gov/publication/70011109
ID  - 70011109
ER  -