TY  - BOOK
AU  - Szymanski, Andrzej
TI  - Hardness estimation of minerals, rocks and ceramic materials
SN  - 0-444-98898-X
PY  - 1989///
CY  - Elsevier
PB  - Amsterdam
UR  - http://14.139.222.13:80/cgi-bin/koha/opac-detail.pl?biblionumber=10254
ER  -