1. Scanning electron microscopy of common silicophytoliths for the correlation of peat types in the Southeastern United States;Andrejko;Geol. Soc. Am., Abstr.,1981
2. Annu. Book ASTM Stand.;American Society for Testing and Materials,1983
3. The status of clay mineral structures;Bailey,1966
4. KAr dating of sedimentary illite polytypes;Bailey;Geol. Soc. Am., Bull.,1962
5. Kaolinite in Illinois Coal;Ball;Econ. Geol.,1934