TY  - BOOK
AU  - Roberts, Willard Lincoln
AU  - Rapp, George Robert
AU  - Weber, Julius
TI  - Encyclopedia of minerals
SN  - 0442268203
U1  - 549.03 
PY  - 1974///
CY  - New York
PB  - Van Nostrand Reinhold
KW  - Mineralogy -- Dictionaries
ER  -