TY  - BOOK
AU  -  Noetstaller,Richard
TI  -  Industrial minerals : :  a technical review / 
PY  - 1987///
CY  -  Washington : 
PB  -  World  Bank Publications, 
KW  -  Nonmetallic minerals
N1  -  Includes bibliographical references (p.115 - 117)
ER  -