FIRS INDUSTRIAL MINERALS INTERNATIONAL CONGRESS
FLEMING R.F.S.
FIRS INDUSTRIAL MINERALS INTERNATIONAL CONGRESS - 0 - LONDON METAL BULLETIN 1975 - 274 pag. 28 cm - 0 0 .
DURNESS FELDSPAR-INDUSTRIAL MINERALS
CIENCIAS APLICADAS
657.862 / F62
FIRS INDUSTRIAL MINERALS INTERNATIONAL CONGRESS - 0 - LONDON METAL BULLETIN 1975 - 274 pag. 28 cm - 0 0 .
DURNESS FELDSPAR-INDUSTRIAL MINERALS
CIENCIAS APLICADAS
657.862 / F62
