000 006270000a22001690004500
008 170921t1973 xxu||||| |||| 00| 0 eng d
041 _aeng
080 _a666.32(548.7)
_bH4
942 _cBK
_02
100 _aHerath, J.W.
245 _aIndustrial clays of Sri Lanka :
_bgeology, mineralogy and appraisal for ceramics and other industries
260 _aColombo
_bGelogical Survey Department
_c1973
300 _axii,113p. : charts, ill., maps, tables ,
_bBibliography included
440 _aGeological Survey Department economic bulletin ; no.1
650 _aCLAY PRODUCTS - Sri Lanka
650 _aCERAMIC PRODUCTS - Sri Lanka
999 _c96175
_d96175